To enable this code, first get at least 1,000 points to get on the scoreboard, then die. When you enter your name, put it as "PSYCHOSLAPHEAD". Now start the game again, and press Start on Control Pad 2 to refill your health at any time.
Level Passwords
Effect
Password
Level 01
FYBY1AZFQ240Q0
Level 02
71JX10W8PY88K0
Level 03
FW(heart)(face)11ZD8(face)C96Y
Level 04
TZZY2159Q9YK80
Level 05
SD7X128VZ(face)KK.8
Secret Menu
When the title screen comes up and prompts you to press "START", hold down A B C, a secret menu will appear with settings for music, SFX, and even a password option!