Speed hack (changing game speed) don't work on any game on android 4.1.1, but when I updated to 4.1.2 it works. To get it working on MC4 you have to change game speed at the game intro, otherwise it freezes a game (when you get it working you can change it to whatever you want). I used a slight speed increase (1.5) to get up from annoying hard <10lvl (btw, it really did help). It's not fun to others if someone is using x100 speed. Also I think small changes in speed are not so visible to others (now others can kick you). I hope somebody finds a way to get money or something, because I don't want to play alot only for few nice gameplay with good weapons.
ps. I am using GameGuardian
