I didn't expect so many bad comments about this game... I just played it, and I found it really really nice. Yes I got stuck here and there, but I think some challenge is part of the fun in a game!! Otherwise it would be just like looking to a shortfilm. I didn't find it too long: certainly not a one minute game but nothing bad in that. Not boring: at every stage there's a change, and discovering which was the new twist every time was just fun. To make it even better I stick with the people that requested a progress bar and I'd find useful the ability to save the game and quit, to finish it some other time.
 "Antimatter Dimensions"){kind=icon}
 "JumpingLine"){kind=icon}
3rd dimension costs 1st dimensions, 4th costs 2nd etc.