Hehe thanks for replies guys!
Index and Sully, i'm glad you guys liked the menus xD
harrio, i suck too, don't worry lol
I'll work on new formulas for the difficult curve too. It's currently linear, both for memes increasing (5 per lvl) and speed (2 secs start, minus 0.1 every level between shots, caped at least to 0.5)
Index, i get mad when click outside too... i'll put some progress saving feature.