Fun game! Could see it on the phone as well, like summertimealice said!
It seems the rewind function is a bit odd, though. On the chaos map, it rewinded, but I kept the key. I guess it's fair in a teleporter maze though :D
Yeah the keeping of pickups/items etc is on purpose, so you could create routes where (for example) you need to rewind to get the amount of moves possible to complete the level. Glad you liked it!