Need to decompile a Game maker game

The only problem is that it has an anti-decompiler.(Game was made with GM 8.1) But I know that people can decompile a GM game that has an ADC(It's not that hard, from what I've heard, but I lack the experience), I've seen it before.

So, if you can decompile this exe into .gmk, I'd owe you one. (I'm making a practice hack of the game, but I need the source)

www . m edia fire . com /download/xxycqlzai5iwww3

(sorry for that retarded link)

I'm trying to decompile Kamilia 3 too... I hope someone will one day decompile it