Destroy the Bosses of Levels 2, 4, 6, and 7

Use this trick to destroy the Bosses of Levels 2, 4, 6, and 7 with one grenade. When fighting one of these bosses, attack with your grenades as fast as you can. As you do this, notice how his body flashes white when you damage him. Press the Pause button when this happens to freeze him while he is white. Wait for roughly 20 or 30 seconds, and then press Pause to resume the battle. KABOOM! He will immediately explode, and you can move on to the next Level!