Start the game with the "chaser.exe -console" command line. While playing a game, press ~, then enter one of the following codes at the console window to enable the corresponding cheat function. You must press the "+" on the right hand side of the screen to activate the cheat, then press ~ to resume the game.
Result
Cheat Code
God mode cht_god
Flight mode cht_flymode
100 additional armor cht_armor 100
100 health cht_health 100
All weapons and items cht_giveall
Spawn indicated weapon cht_weapon [name]
Change game speed cht_timescale [number]
Unknown cht_no_bots_spawn
Unknown cht_next_rp
Unknown cht_no_trigger_activate
Unknown cht_logactivateparticles