The graphics are very minimalistic and artificial (but that´s ok, because it´s part of the atmosphere), but the animations are very well made.
So why is this game called "Punishment"? Because when you make an mistake and miss a platform, there´s the chance that you´ll fall through all "levels" (or screens to be more precise) and have to start from the beginning again. Kind of punishment...

Developer: Mark Essen and Marten Elder
Download: http://www.messhof.com/games/
Download size: 5.5 MB
Year: 2005
Status: I´ll have to check it...