Apeiron X has several cheat codes that you can type in while the game is paused.
• SNAPPLE - gives you the yummy-lock.
• PERNTS - Adds points to your score.
• NALA - The almighty sprinkly shield.
• SQUISH - Rapid fire.
• USMC - Adds 5000 to your bonus score.
• DJARUM - Allows you to pass through mushrooms.
• HECTOR - Automatically maxes out your lives, so you total eight.
• NICE BOX - Guided shots.
• MORRISON - Moves you ahead 12 levels.