God Mode
For invulnerability, press T while playing then type "swchan" and hit ENTER.

Level Select
To warp to any level, press 't' while playing, then type "swtrek##" (##=level number.)

Walk Through Walls
To walk through walls, press 't' while playing, then type "swghost".

Bunny Bullets
To fire rabbits instead of rockets, press 't' while playing, then type "swtricks".

Reveal Secrets
To reveal all secret locations, press 't' while playing, then type "swsecret".

All Items
To gain all items, press 't' while playing, then type "swgreed".