I'm interested in buying this game, but the only issue i have is the Shader Model 4.0 not supported by my chipset

How many levels are there?

I get that it's a mostly easy, short and minimalist game, but: - separate audio toggles and volume settings would be nice. - and displaying controls somewhere, even if it's just the arrows and 'r' to restart. - also undo. - and more than one level unlocked at a time. - and the game would reach a bigger audience if it had at least one achievement. there are people who won't touch games without them for whatever reason. (added in june) - the mouse cursor should disappear after ...

Been stuck on 32 for hours now

anyone got a solution? much to my surprise I managed to do all the others, but I'd rather not spend more time on this one level. can't bring 2 squares down no matter what I try.