Enter the following codes in the codes option. 

Infinite lives 

SUPERGOD

All training challenges 

CEREBRA

Programmer high scores 

VVHISCRS

Cheat mode 

AUNTMAY

Level select 

NONJYMNT

All costumes 

WASHMCHN

What If? mode 

VVISIONS. Depending on how you well you make progress in the game, various parts in the future may change. Great mode.

Debug mode 

DRILHERE

Big head mode 

ALIEN

Big feet mode 

STACEYD

All gallery entries 

DRKROOM

10/29/01