hmm.. imo you should get new cards faster in the beginning. I have now played 40 (15 won :S), without gaining any. Would be nice motivativaoin if you gain 1 card each time you "leveled"
8,6x! :D
I only had one game left at 3, but luckily it was easy as hell (the one where you control a ball and have to avoid 3 jumping balls) :D Got a bit boring though
 "Kongai"){kind=icon}
 "Triangles"){kind=icon}
 "Grid16"){kind=icon}
 "MAD: Mutually Assured Destruction"){kind=icon}
 "Areas"){kind=icon}