The third major iteration of Pushmo made things a bit weird by selling its various level packs separately, but there's a lot you can get for just 10 dollars and the new stretch gimmick is pretty neat. Basically, now you can pull out blocks in all directions now, not just forward but back, left and right as well if there's room. It's a neat new twist on things that's works well, that said I didn't end up completing any of the level packs I bought. Just didn't grab me as hard. Diminishing returns!