Basic puzzle/platformer with pushable blocks, moving platforms, buttons, flame jets, propellers, anything else you might think of. Everything works well enough.
Music is nice. Graphics are cute, "cat in the city night" themed. The controls are pretty tight, but I did have a trouble with some of the physics later in the game, such as the way the blocks rolled, the way Catty moved on some of the ledges, and the propellers on level 14 can wreak havoc with the hanging platforms. Was that intentional? Nothing game-breaking, though. Well done!