diff --git a/bin/build_spritesheet_asm.rb b/bin/build_spritesheet_asm.rb
index 6881fd3..daa2ee6 100755
--- a/bin/build_spritesheet_asm.rb
+++ b/bin/build_spritesheet_asm.rb
@@ -39,10 +39,15 @@ MovBytePtr = Data.define(:offset, :data)
 ASM_TEMPLATE = <<~ASM
   <% sprites.each do |sprite| %>
   PUBLIC <%= sprite.exported_name %><% end %>
+  PUBLIC _palette
 
   .386
   .model flat,c
 
+  .DATA
+  _palette:
+  <%= palette.flat_map { |color| color.to_asm_struct }.join("\n") %>
+
   .CODE
 
   <% sprites.each do |sprite| %>
@@ -69,9 +74,7 @@ H_TEMPLATE = <<~H
 
   #define PALETTE_COLOR_COUNT (<%= palette.length %>)
 
-  struct VGAColor palette[<%= palette.length %>] = {
-    <%= palette.map(&:to_struct).join(",\n") %>
-  };
+  extern struct VGAColor palette[<%= palette.length %>];
 
   <% sprites.each do |sprite| %>
   extern void <%= sprite.function_name %>(byte *);
@@ -154,8 +157,12 @@ sprite_data = []
 palette = nil
 
 VGAColor = Data.define(:red, :green, :blue) do
-  def to_struct
-    "{ #{red}, #{green}, #{blue} }"
+  def to_asm_struct
+    [
+      "  BYTE #{red}",
+      "  BYTE #{green}",
+      "  BYTE #{blue}"
+    ]
   end
 end
 
diff --git a/bin/game b/bin/game
new file mode 100755
index 0000000..ce7322f
--- /dev/null
+++ b/bin/game
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+wmake clean && wmake && dosbox-x -nolog game.exe
diff --git a/bin/test b/bin/test
new file mode 100755
index 0000000..4f297bb
--- /dev/null
+++ b/bin/test
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+wmake clean && wmake test && dosbox-x -nolog test.exe
+
diff --git a/combat.c b/combat.c
index 7b68763..d18b0c7 100644
--- a/combat.c
+++ b/combat.c
@@ -2,11 +2,12 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "game.h"
+#include "system/vga.h"
 
+#include "game.h"
+#include "powerup.h"
 #include "movement.h"
 #include "const.h"
-#include "system/vga.h"
 
 void setupBullet(
   struct BulletPosition *bullet,
@@ -484,3 +485,58 @@ int handleRabbitToPowerupCollision(
 
   return isCollision();
 }
+
+int processEnemyKillStates(
+  struct EnemyPosition enemyPosition[]
+) {
+  int i, currentKillCount = 0;
+
+  for (i = 0; i < ENEMY_MAX_COUNT; ++i) {
+    if (enemyPosition[i].wasKilled) {
+      enemyPosition[i].wasKilled = 0;
+      currentKillCount++;
+    }
+  }
+
+  return currentKillCount;
+}
+
+void handleEnemyKills(
+  struct EnemyPosition enemyPosition[],
+  struct GlobalGameState *globalGameState,
+  struct PlayerPowerup *playerPowerup,
+  struct RabbitWeaponry *rabbitWeaponry
+) {
+  int i, hadKill, currentKillCount;
+
+  currentKillCount = processEnemyKillStates(enemyPosition);
+
+  globalGameState->health += ENEMY_KILL_HEALTH_GAIN * currentKillCount;
+  if (globalGameState->health > RABBIT_HEALTH_MAX) globalGameState->health = RABBIT_HEALTH_MAX;
+
+  globalGameState->kills += currentKillCount;
+
+  processPowerupCooldown(
+    playerPowerup,
+    globalGameState,
+    rabbitWeaponry,
+    currentKillCount
+  );
+
+  if (hadKill) {
+    for (i = 0; i < 10; ++i) {
+      if (globalGameState->kills > difficultyBands[i]) {
+        globalGameState->difficulty = i + 1;
+      }
+    }
+  }
+}
+
+void fireCurrentWeaponOnce(struct RabbitWeaponry *rabbitWeaponry) {
+  if (rabbitWeaponry->currentWeaponRemainingRounds > 0) {
+    rabbitWeaponry->currentWeaponRemainingRounds--;
+    if (rabbitWeaponry->currentWeaponRemainingRounds == 0) {
+      rabbitWeaponry->currentWeapon = WEAPON_TYPE_SINGLE_SHOT_GUN;
+    }
+  }
+}
diff --git a/combat.h b/combat.h
index 8a56b27..f2952c9 100644
--- a/combat.h
+++ b/combat.h
@@ -48,3 +48,11 @@ int handleRabbitToPowerupCollision(
   struct RabbitPosition *rabbitPosition,
   struct PlayerPowerup *playerPowerup
 );
+
+void handleEnemyKills(
+  struct EnemyPosition enemyPosition[],
+  struct GlobalGameState *globalGameState,
+  struct PlayerPowerup *playerPowerup
+);
+
+void fireCurrentWeaponOnce(struct RabbitWeaponry*);
diff --git a/combat_test.c b/combat_test.c
new file mode 100644
index 0000000..46f3f95
--- /dev/null
+++ b/combat_test.c
@@ -0,0 +1,71 @@
+#include "cutest-1.5/CuTest.h"
+#include "combat.h"
+
+#include "game.h"
+#include "movement.h"
+#include "const.h"
+#include "powerup.h"
+
+int processEnemyKillStates(struct EnemyPosition[]);
+
+void TestProcessEmenyKillStates(CuTest *tc) {
+  struct EnemyPosition enemyPosition[ENEMY_MAX_COUNT];
+  int i, result;
+
+  for (i = 0; i < ENEMY_MAX_COUNT; ++i) {
+    enemyPosition[i].wasKilled = 0;
+  }
+
+  enemyPosition[0].wasKilled = 1;
+  enemyPosition[ENEMY_MAX_COUNT - 1].wasKilled = 1;
+
+  result = processEnemyKillStates(enemyPosition);
+
+  CuAssertIntEquals(tc, 2, result);
+}
+
+void TestFireCurrentWeaponOnce_NoRoundsRemaining(CuTest *tc) {
+  struct RabbitWeaponry rabbitWeaponry;
+
+  rabbitWeaponry.currentWeaponRemainingRounds = 0;
+  rabbitWeaponry.currentWeapon = 99;
+
+  fireCurrentWeaponOnce(&rabbitWeaponry);
+
+  CuAssertIntEquals(tc, 99, rabbitWeaponry.currentWeapon);
+  CuAssertIntEquals(tc, 0, rabbitWeaponry.currentWeaponRemainingRounds);
+}
+
+void TestFireCurrentWeaponOnce_OneRoundRemaining(CuTest *tc) {
+  struct RabbitWeaponry rabbitWeaponry;
+
+  rabbitWeaponry.currentWeaponRemainingRounds = 1;
+  rabbitWeaponry.currentWeapon = 99;
+
+  fireCurrentWeaponOnce(&rabbitWeaponry);
+
+  CuAssertIntEquals(tc, WEAPON_TYPE_SINGLE_SHOT_GUN, rabbitWeaponry.currentWeapon);
+  CuAssertIntEquals(tc, 0, rabbitWeaponry.currentWeaponRemainingRounds);
+}
+
+void TestFireCurrentWeaponOnce_TwoRoundsRemaining(CuTest *tc) {
+  struct RabbitWeaponry rabbitWeaponry;
+
+  rabbitWeaponry.currentWeaponRemainingRounds = 2;
+  rabbitWeaponry.currentWeapon = 99;
+
+  fireCurrentWeaponOnce(&rabbitWeaponry);
+
+  CuAssertIntEquals(tc, 99, rabbitWeaponry.currentWeapon);
+  CuAssertIntEquals(tc, 1, rabbitWeaponry.currentWeaponRemainingRounds);
+}
+
+
+CuSuite *CombatGetSuite() {
+  CuSuite *suite = CuSuiteNew();
+  SUITE_ADD_TEST(suite, TestProcessEmenyKillStates);
+  SUITE_ADD_TEST(suite, TestFireCurrentWeaponOnce_NoRoundsRemaining);
+  SUITE_ADD_TEST(suite, TestFireCurrentWeaponOnce_OneRoundRemaining);
+  SUITE_ADD_TEST(suite, TestFireCurrentWeaponOnce_TwoRoundsRemaining);
+  return suite;
+}
diff --git a/const.c b/const.c
new file mode 100644
index 0000000..a30a6c3
--- /dev/null
+++ b/const.c
@@ -0,0 +1,14 @@
+#include "system/vga.h"
+#include "const.h"
+
+int difficultyBands[MAX_DIFFICULTY] = { 10, 20, 30, 50, 80, 130, 210, 340, 550, 890 };
+struct SpriteBounds bounds;
+
+// TODO: centralize these outside of game.c
+struct CompiledSpriteRender rabbit,
+  mouse,
+  bullet,
+  enemy,
+  enemyBullet,
+  shotgun,
+  shieldKiller;
diff --git a/const.h b/const.h
index bba8b30..4ef80d0 100644
--- a/const.h
+++ b/const.h
@@ -1,3 +1,8 @@
+#ifndef __CONST_H__
+#define __CONST_H__
+
+#include "system/vga.h"
+
 #define TILE_SIZE (20)
 #define ARENA_WIDTH_TILES (10)
 #define ARENA_HEIGHT_TILES (10)
@@ -50,3 +55,17 @@
 #define POWERUP_RESPAWN_COOLDOWN_PER_LEVEL (10)
 
 #define SHOTGUN_ROUNDS_PER_LEVEL (25)
+#define MAX_DIFFICULTY (10)
+
+extern int difficultyBands[];
+extern struct SpriteBounds bounds;
+
+extern struct CompiledSpriteRender rabbit,
+  mouse,
+  bullet,
+  enemy,
+  enemyBullet,
+  shotgun,
+  shieldKiller;
+
+#endif
diff --git a/game.c b/game.c
index ddac22a..7f7cce1 100644
--- a/game.c
+++ b/game.c
@@ -18,16 +18,7 @@
 #include "combat.h"
 #include "game.h"
 #include "spawn.h"
-
-// TODO: centralize these outside of game.c
-struct CompiledSpriteRender rabbit,
-  mouse,
-  bullet,
-  enemy,
-  enemyBullet,
-  shotgun,
-  shieldKiller;
-struct SpriteBounds bounds;
+#include "powerup.h"
 
 struct BMPImage spritesheetImage;
 struct VGAColor vgaColors[256];
@@ -50,6 +41,13 @@ struct BulletPosition enemyBulletPosition[ENEMY_BULLET_LIMIT];
 struct RabbitWeaponry rabbitWeaponry;
 struct PlayerPowerup playerPowerup;
 
+struct GlobalGameState globalGameState = {
+  .spawnCooldown = 0,
+  .difficulty = 0,
+  .kills = 0,
+  .health = RABBIT_HEALTH_MAX
+};
+
 void setupRabbitBullets() {
   int i;
 
@@ -66,7 +64,7 @@ void setupRabbitBullets() {
 void setupPowerup() {
   playerPowerup.x = 100;
   playerPowerup.y = 100;
-  playerPowerup.cooldown = 20 + rand() % 10;
+  playerPowerup.cooldown = determinePowerupCooldownTime(globalGameState.difficulty);
   playerPowerup.type = POWERUP_TYPE_SHOTGUN;
   playerPowerup.isActive = 0;
 }
@@ -89,54 +87,6 @@ void setupEnemies() {
   }
 }
 
-struct GlobalGameState globalGameState = {
-  .spawnCooldown = 0,
-  .difficulty = 0
-};
-
-int kills = 0;
-int health = RABBIT_HEALTH_MAX;
-
-int difficultyBands[10] = { 10, 20, 30, 50, 80, 130, 210, 340, 550, 890 };
-
-void handleEnemyKills() {
-  int i, hadKill, currentKillCount;
-
-  currentKillCount = 0;
-
-  for (i = 0; i < ENEMY_MAX_COUNT; ++i) {
-    if (enemyPosition[i].wasKilled) {
-      enemyPosition[i].wasKilled = 0;
-      kills++;
-      currentKillCount++;
-      health += ENEMY_KILL_HEALTH_GAIN;
-      if (health > RABBIT_HEALTH_MAX) health = RABBIT_HEALTH_MAX;
-
-      hadKill = 1;
-    }
-  }
-
-  kills += currentKillCount;
-
-  playerPowerup.cooldown -= currentKillCount;
-  if (playerPowerup.cooldown <= 0) {
-    playerPowerup.x = TILE_SIZE + rand() % ((ARENA_WIDTH_TILES - 2) * TILE_SIZE);
-    playerPowerup.y = TILE_SIZE + rand() % ((ARENA_HEIGHT_TILES - 2) * TILE_SIZE);
-    playerPowerup.isActive = 1;
-
-    playerPowerup.cooldown = POWERUP_RESPAWN_COOLDOWN_PER_LEVEL * globalGameState.difficulty +
-      rand() % (POWERUP_RESPAWN_COOLDOWN_PER_LEVEL * globalGameState.difficulty);
-  }
-
-  if (hadKill) {
-    for (i = 0; i < 10; ++i) {
-      if (kills > difficultyBands[i]) {
-        globalGameState.difficulty = i + 1;
-      }
-    }
-  }
-}
-
 void setupEnemySprites() {
   buildCompiledSprite(
     &sprite_enemy,
@@ -419,12 +369,9 @@ void handleCombat() {
       &rabbitWeaponry,
       rabbitBulletPosition
     )) {
-      if (rabbitWeaponry.currentWeaponRemainingRounds > 0) {
-        rabbitWeaponry.currentWeaponRemainingRounds--;
-        if (rabbitWeaponry.currentWeaponRemainingRounds == 0) {
-          rabbitWeaponry.currentWeapon = WEAPON_TYPE_SINGLE_SHOT_GUN;
-        }
-      }
+      fireCurrentWeaponOnce(
+        &rabbitWeaponry
+      );
     }
   }
 
@@ -458,7 +405,7 @@ void handleCombat() {
   );
 
   if (didHitRabbit) {
-    health -= ENEMY_COLLISION_DAMAGE * didHitRabbit;
+    globalGameState.health -= ENEMY_COLLISION_DAMAGE * didHitRabbit;
   }
 
   didHitRabbit = handleEnemyBulletToRabbitCollisions(
@@ -467,7 +414,7 @@ void handleCombat() {
   );
 
   if (didHitRabbit) {
-    health -= ENEMY_BULLET_DAMAGE * didHitRabbit;
+    globalGameState.health -= ENEMY_BULLET_DAMAGE * didHitRabbit;
   }
 
   handleRabbitBulletToEnemyCollisions(
@@ -478,7 +425,7 @@ void handleCombat() {
   if (handleRabbitToPowerupCollision(&rabbitPosition, &playerPowerup)) {
     playerPowerup.willBeInactive = 1;
     rabbitWeaponry.currentWeapon = WEAPON_TYPE_SPREAD_SHOT_GUN;
-    rabbitWeaponry.currentWeaponRemainingRounds = (globalGameState.difficulty + 1) * SHOTGUN_ROUNDS_PER_LEVEL;
+    rabbitWeaponry.currentWeaponRemainingRounds = determineShotgunRounds(globalGameState.difficulty);
   }
 }
 
@@ -531,14 +478,20 @@ int main(void) {
     handleMovement();
     handleRedraw();
     handleCombat();
-    handleEnemyKills();
+    handleEnemyKills(
+      enemyPosition,
+      &globalGameState,
+      &playerPowerup
+    );
 
-    sprintf(buffer, "Hit: %d", kills);
+    sprintf(buffer, "Hit: %d", globalGameState.kills);
     renderStringToDrawBuffer(buffer, 1, 0, 210, 20);
-    sprintf(buffer, "Health: %d  ", health);
+    sprintf(buffer, "Health: %d  ", globalGameState.health);
     renderStringToDrawBuffer(buffer, 1, 0, 210, 30);
     sprintf(buffer, "Rnds: %d  ", rabbitWeaponry.currentWeaponRemainingRounds);
     renderStringToDrawBuffer(buffer, 1, 0, 210, 40);
+    sprintf(buffer, "Cool: %d  ", playerPowerup.cooldown);
+    renderStringToDrawBuffer(buffer, 1, 0, 210, 50);
 
     waitStartVbl();
     copyDrawBufferToDisplay();
diff --git a/game.h b/game.h
index 9beb271..8d22925 100644
--- a/game.h
+++ b/game.h
@@ -9,6 +9,8 @@ extern struct SpriteBounds bounds;
 struct GlobalGameState {
   int difficulty;
   int spawnCooldown;
+  int kills;
+  int health;
 };
 
 #endif
diff --git a/makefile b/makefile
index acc0f57..7c9a192 100644
--- a/makefile
+++ b/makefile
@@ -1,4 +1,5 @@
-obj = sprites.o game.o bmpload.o arena.o movement.o combat.o spawn.o
+obj = sprites.o game.o bmpload.o arena.o movement.o combat.o spawn.o const.o powerup.o
+test_obj = test.o spawn.o spawn_test.o powerup.o powerup_test.o const.o combat.o combat_test.o
 
 all: system/system.lib game.exe test .SYMBOLIC
 
@@ -19,11 +20,14 @@ sprites.asm: sprtsht.bmp spritesheet.yml
 game.exe: $(obj) system/system.lib
   wcl386 -q -fe=game -bt=dos -l=dos4g $(obj) system/system.lib
 
-test: test.c spawn_test.c spawn.c .SYMBOLIC
-	wcl386 -fe=test -bt=dos -l=dos4g test.c spawn.c spawn_test.c cutest-1.5/CuTest.c
+test: $(test_obj) system/system.lib .SYMBOLIC
+	wcl386 -fe=test -bt=dos -l=dos4g $(test_obj) cutest-1.5/CuTest.c system/system.lib
 
 clean: .SYMBOLIC
+	rm -f game.exe
+	rm -f test.exe
 	rm *.o
 	rm *.err
 	rm system/*.o
 	rm system/*.lib
+	rm system/*.err
diff --git a/powerup.c b/powerup.c
new file mode 100644
index 0000000..290af5d
--- /dev/null
+++ b/powerup.c
@@ -0,0 +1,46 @@
+#include <stdlib.h>
+
+#include "game.h"
+#include "movement.h"
+#include "powerup.h"
+#include "const.h"
+
+// powerup should spawn every other difficulty band
+// so the first spawn should happen somewhere 10 + (20 * rand())
+int determinePowerupCooldownTime(int difficulty) {
+  if (difficulty > MAX_DIFFICULTY) exit(1);
+
+  return difficultyBands[difficulty] + rand() % difficultyBands[difficulty];
+}
+
+// if every shot lands, you should run out slightly before the next powerup
+// should be available
+// so for the first rounds should be difficulty(1) + difficulty(2) % rand() or so
+int determineShotgunRounds(int difficulty) {
+  if (difficulty > MAX_DIFFICULTY) exit(1);
+
+  return difficultyBands[difficulty] +
+    difficultyBands[difficulty] / 2 +
+    rand() % (difficultyBands[difficulty] / 2);
+}
+
+void processPowerupCooldown(
+  struct PlayerPowerup *playerPowerup,
+  struct GlobalGameState *globalGameState,
+  struct RabbitWeaponry *rabbitWeaponry,
+  int killCount
+) {
+  if (playerPowerup->isActive) return;
+  if (rabbitWeaponry->currentWeapon != WEAPON_TYPE_SINGLE_SHOT_GUN) return;
+
+  playerPowerup->cooldown -= killCount;
+  if (playerPowerup->cooldown <= 0) {
+    playerPowerup->x = TILE_SIZE + rand() % ((ARENA_WIDTH_TILES - 2) * TILE_SIZE);
+    playerPowerup->y = TILE_SIZE + rand() % ((ARENA_HEIGHT_TILES - 2) * TILE_SIZE);
+    playerPowerup->isActive = 1;
+    playerPowerup->willBeInactive = 0;
+
+    playerPowerup->cooldown = determinePowerupCooldownTime(globalGameState->difficulty);
+  }
+}
+
diff --git a/powerup.h b/powerup.h
new file mode 100644
index 0000000..e52c173
--- /dev/null
+++ b/powerup.h
@@ -0,0 +1,16 @@
+#ifndef __POWERUP_H__
+#define __POWERUP_H__
+
+#include "game.h"
+#include "movement.h"
+
+int determinePowerupCooldownTime(int difficulty);
+int determineShotgunRounds(int difficulty);
+void processPowerupCooldown(
+  struct PlayerPowerup*,
+  struct GlobalGameState*,
+  struct RabbitWeaponry*,
+  int killCount
+);
+
+#endif
diff --git a/powerup_test.c b/powerup_test.c
new file mode 100644
index 0000000..1ee6e66
--- /dev/null
+++ b/powerup_test.c
@@ -0,0 +1,125 @@
+#include "cutest-1.5/CuTest.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "game.h"
+#include "movement.h"
+#include "powerup.h"
+#include "const.h"
+
+void TestDeterminePowerupCooldownTime(CuTest *tc) {
+  srand(1);
+
+  CuAssertIntEquals(tc, 18, determinePowerupCooldownTime(0));
+  CuAssertIntEquals(tc, 38, determinePowerupCooldownTime(1));
+  CuAssertIntEquals(tc, 33, determinePowerupCooldownTime(2));
+}
+
+void TestDetermineShotgunRounds(CuTest *tc) {
+  srand(1);
+
+  CuAssertIntEquals(tc, 18, determineShotgunRounds(0));
+  CuAssertIntEquals(tc, 38, determineShotgunRounds(1));
+  CuAssertIntEquals(tc, 48, determineShotgunRounds(2));
+}
+
+
+
+void TestProcessPowerupCooldown_PowerupActive(CuTest *tc) {
+  struct PlayerPowerup playerPowerup;
+  struct GlobalGameState globalGameState;
+  struct RabbitWeaponry rabbitWeaponry;
+
+  playerPowerup.isActive = 1;
+  playerPowerup.cooldown = 100;
+
+  processPowerupCooldown(
+    &playerPowerup,
+    &globalGameState,
+    &rabbitWeaponry,
+    10
+  );
+
+  CuAssertIntEquals(tc, 100, playerPowerup.cooldown);
+  CuAssertIntEquals(tc, 1, playerPowerup.isActive);
+}
+
+void TestProcessPowerupCooldown_WeaponActive(CuTest *tc) {
+  struct PlayerPowerup playerPowerup;
+  struct GlobalGameState globalGameState;
+  struct RabbitWeaponry rabbitWeaponry;
+
+  playerPowerup.isActive = 0;
+  playerPowerup.cooldown = 100;
+  rabbitWeaponry.currentWeapon = 99;
+
+  processPowerupCooldown(
+    &playerPowerup,
+    &globalGameState,
+    &rabbitWeaponry,
+    10
+  );
+
+  CuAssertIntEquals(tc, 100, playerPowerup.cooldown);
+  CuAssertIntEquals(tc, 0, playerPowerup.isActive);
+}
+
+void TestProcessPowerupCooldown_NotTriggered(CuTest *tc) {
+  struct PlayerPowerup playerPowerup;
+  struct GlobalGameState globalGameState;
+  struct RabbitWeaponry rabbitWeaponry;
+
+  playerPowerup.isActive = 0;
+  playerPowerup.cooldown = 100;
+  rabbitWeaponry.currentWeapon = WEAPON_TYPE_SINGLE_SHOT_GUN;
+
+  processPowerupCooldown(
+    &playerPowerup,
+    &globalGameState,
+    &rabbitWeaponry,
+    10
+  );
+
+  CuAssertIntEquals(tc, 90, playerPowerup.cooldown);
+  CuAssertIntEquals(tc, 0, playerPowerup.isActive);
+}
+
+void TestProcessPowerupCooldown_Triggered(CuTest *tc) {
+  struct PlayerPowerup playerPowerup;
+  struct GlobalGameState globalGameState;
+  struct RabbitWeaponry rabbitWeaponry;
+
+  srand(1);
+
+  playerPowerup.isActive = 0;
+  playerPowerup.cooldown = 100;
+  rabbitWeaponry.currentWeapon = WEAPON_TYPE_SINGLE_SHOT_GUN;
+  playerPowerup.willBeInactive = 1;
+  globalGameState.difficulty = 0;
+
+  processPowerupCooldown(
+    &playerPowerup,
+    &globalGameState,
+    &rabbitWeaponry,
+    101
+  );
+
+  CuAssertIntEquals(tc, 1, playerPowerup.isActive);
+  CuAssertIntEquals(tc, 0, playerPowerup.willBeInactive);
+
+  // rand
+  CuAssertIntEquals(tc, 13, playerPowerup.cooldown);
+  CuAssertIntEquals(tc, 58, playerPowerup.x);
+  CuAssertIntEquals(tc, 178, playerPowerup.y);
+}
+
+CuSuite *PowerupGetSuite() {
+  CuSuite *suite = CuSuiteNew();
+  SUITE_ADD_TEST(suite, TestDeterminePowerupCooldownTime);
+  SUITE_ADD_TEST(suite, TestDetermineShotgunRounds);
+  SUITE_ADD_TEST(suite, TestProcessPowerupCooldown_PowerupActive);
+  SUITE_ADD_TEST(suite, TestProcessPowerupCooldown_WeaponActive);
+  SUITE_ADD_TEST(suite, TestProcessPowerupCooldown_NotTriggered);
+  SUITE_ADD_TEST(suite, TestProcessPowerupCooldown_Triggered);
+  return suite;
+}
diff --git a/sprites.asm b/sprites.asm
index 094aff8..847cd86 100644
--- a/sprites.asm
+++ b/sprites.asm
@@ -8,10 +8,65 @@ PUBLIC sprite_bullet_
 PUBLIC sprite_enemy_
 PUBLIC sprite_shotgun_
 PUBLIC sprite_shieldKiller_
+PUBLIC _palette
 
 .386
 .model flat,c
 
+.DATA
+_palette:
+  BYTE 63
+  BYTE 0
+  BYTE 63
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 15
+  BYTE 16
+  BYTE 49
+  BYTE 16
+  BYTE 16
+  BYTE 33
+  BYTE 16
+  BYTE 16
+  BYTE 16
+  BYTE 63
+  BYTE 63
+  BYTE 63
+  BYTE 38
+  BYTE 31
+  BYTE 12
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+  BYTE 0
+
 .CODE
 
 
diff --git a/sprites.h b/sprites.h
index 5f221ce..0b25060 100644
--- a/sprites.h
+++ b/sprites.h
@@ -6,25 +6,7 @@
 
 #define PALETTE_COLOR_COUNT (17)
 
-struct VGAColor palette[17] = {
-  { 63, 0, 63 },
-{ 0, 0, 0 },
-{ 15, 16, 49 },
-{ 16, 16, 33 },
-{ 16, 16, 16 },
-{ 63, 63, 63 },
-{ 38, 31, 12 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 },
-{ 0, 0, 0 }
-};
+extern struct VGAColor palette[17];
 
 
 extern void sprite_arenaWallTop(byte *);
diff --git a/test.c b/test.c
index dee4f63..e4d78ad 100644
--- a/test.c
+++ b/test.c
@@ -2,19 +2,25 @@
 #include <stdio.h>
 
 CuSuite *SpawnGetSuite();
+CuSuite *PowerupGetSuite();
+CuSuite *CombatGetSuite();
 
-void RunAllTests(void) {
+int RunAllTests(void) {
   CuString *output = CuStringNew();
   CuSuite *suite = CuSuiteNew();
 
   CuSuiteAddSuite(suite, SpawnGetSuite());
+  CuSuiteAddSuite(suite, PowerupGetSuite());
+  CuSuiteAddSuite(suite, CombatGetSuite());
 
   CuSuiteRun(suite);
   CuSuiteSummary(suite, output);
   CuSuiteDetails(suite, output);
   printf("%s\n", output->buffer);
+
+  return suite->failCount > 0;
 }
 
 int main(void) {
-  RunAllTests();
+  return RunAllTests();
 }