During play, press ~ , and enter the following codes, afterwards, press enter again to verify them.

Code	Effect
e_cheats true	enable Cheat Mode.
god true	enable god mode.
infiniteammo true	enable unlimited ammo.
infinitedash true	enable unlimited dash.
noclip true	enable noclip (ghost mode).
turbo (any number)	enable turbo make game too fast or too slow.