very good concept
maybe the same mechanic with vertical movement too =)

Nice concept, there were a few bugs 1) the two players dont move together a few times, they get out of sync. 2) On the last screen, if you jump over the block and push it back, you cant get out. 3) No quit button/escape in game. I had to force-close due to unable to get past the last page. But v good concept and I enjoyed it