100% secret 100% enemies. Double check none treasure on the floor. What might miss?

So I was at Floor 6 in Ultimate Challenge and I think I'm forever stuck. In the first part where you have to push the "Achtung" poster walls to progress and... I think one of the enemies stopped one of the wall making any more progress. Like a dumbass, I thought this was where the wall was supposed to stop and thought this was a dead end. I cleared out another part of a level but stuck with a pair of two locked doors but I had no key. Stuck, I had to look at a walkthrough and that's where I realised one of...

How do you enable cheats on the game? I think that my initial download included a bat file to activate it but my recent one doesn't. I tried copying one of the bat files and added -debugmode but it doesn't work. The game loads but the cheat keys don't function. Hitting alt + shift + backspace doesn't do anything either....

you can cover up the gold key so you only a few options: have a previous save file before the gold key was covered up pray to god there is an enemie in the level to kill you restart the entier game or cheat to get the key

whoops