MDK2 [cheats updated]
!!! ALL are CASEsensitive, goddebugtoggle() is not same as GodDebugToggle() !!!
In-game you can press '~' and enter the following string after the 'Omen' prompt to get full invulnerability:
Looks like the programming language? Yeah - this is trick for the internal game scripting system. But please note that this code must be re-entered periodically because the game doesn't store previous mode while map block change (block changing can be determined if your HDD reads something heavy and the game slowdowns for a while, or just see what you now is not invlunerable and your health value is decreasing). Hopefully you do not have to re-enter this long code - you can just bring console ('~' key) and then press Up-arrow key to get previous command form history.
Other codes (entered the same way):
God(1) God Mode (Short Version)
mdkNewGame(1,12) Jump to Level 1
mdkNewGame(2,12) Jump to Level 2
mdkNewGame(3,12) Jump to Level 3
mdkNewGame(4,12) Jump to Level 4
mdkNewGame(5,11) Jump to Level 5
mdkNewGame(6,8) Jump to Level 6
mdkNewGame(7,11) Jump to Level 7
mdkNewGame(8,8) Jump to Level 8
mdkNewGame(9,13) Jump to Level 9
mdkNewGame(10,7) Jump to Level 10 (Final)
mdkNewGame(11,1) Jump to Level 10 #1 (Special)
mdkNewGame(12,1) Jump to Level 10 #2 (Special)
GodDebugToggle() God Mode on/off
Type KurtGetNaked() in the console and then mdkNewGame(1,12) then Kurt will be naked when you play level 1. This works for any level that Kurt plays in. Just type KurtGetNaked() and start the level with Kurt in it.
When ever you play as Max, the six-legged dog, hold onto the "fire" key and press the "equip up" key four times while holding onto the "fire" key. The screen will say Slo-mo! if the cheat worked. To cancel slo-mo, repeat the cheat.