Well its good if you want a few medals or just really bored.But that isn't me saying its a bad game, far from it in fact the music is good (even if its unfitting) and the gameplay is simple but fun. It just means that it is a good game that works.
Game isn't perfect but no worry you are learning . Like i said before i think you have a good feel for making puzzles and progression in levels.
If i am not mistakes the character and levels are premade tools from physics mode? I think i saw it in some freeware engine .
Next step for you is to make all original games and i think it will only get better from now .
Choppy controls at times, but the concept is really good. I enjoy the level triggers by the coins and the additional character.
The character is a bit too slow.