Type again to turn off
Now you have to jump to a map, I'd reccommend the first level. So type map pra1
Now the cheat mode is enabled, and you can type in the rest of the cheats on any level now
Type again to turn the cheat off
Pra1
Pra2
Pra3
Pra4
Pra5
Pra6
Ie - map Pra1
Liner1
Liner2
Liner3