There were a few small issues (rising lava getting stuck, second checkpoint not working for me), but this game is pretty awesome regardless. I had fun playing, and it just looks good overall. While I did figure out while playing that you can only jump after you touch a block, a clear indicator that displays whether or not your jump is available would be nice (althought it seems you were aware of this issue too, and didn't implement a fix due to lack of time, which is totally understandable).