Suprisingly fun. Not as hard as other "puzzle" games. Enjoyable, satisfying, forgiving, and as though has multiple solutions, more about "getting to the result" than about figuring out what precise movements the sick autor thought out.
From bugs. The end screen the door swings around like a propeller in closed state. And any level with a lot of space, for example it having an "outside" really tanks the performance. Probably the account of tiles compares to when its in a room. Playable but even the audio distorts.
Very good game.