Fun game in theory, but a lot of mechanical failings made it hard to actually enjoy. The inconsistency of springs functioning (it was sheer luck that I was able to finish the last stage) and the precision required to avoid spikes (I'm thinking of dodging the sawblade w/ the floor spikes immediately following in stage 6, and the 1-tile openings for stages 7 & 8) without a clear sense of your hitbox or where you're going to land wore out the enjoyment of the earlier stages. I liked the almost typist-level of on-the-fly button pressing as I had to figure out which button would move me out of harms way, though.