Awesome game! Two things though:
1. The in-game cursor and the windows cursor are visible simultaneously, causing bit of lag;
2. Not sure if it was intended, but I haven't released Kenny yet and from the level select screen I was able to do the prison break getting the final medal.
That cursor issue is especially causing problems with the Kenny stage because for some reason some clicks simply do not register.
And I admit that those later fighting sequences are a bit brutal and a bit too long.