Found out about some levels on keen dreams

[abyss]

I found out about some levels that are not playable without cheats during gameplay hold a,2,enter than let go and you can now type in cheats. Type in f10,w it will tell you which level you want to enter a few of the levels are not able to be enetered without cheats like level 13. f10 j is a jump cheat and f10 g is invincibility.