I like the designs, for me it was a little hard completing it so maybe making it a little more easier would help!

good little start.  wish there was a goal fo collecting all the coins

This is really good, It is actually playable. The one thing I must mention is that the lack of a goal is the only down side to this. :}

Good art

fun, maybe send those dungeon door things to a layer behind the player if that isnt intended :)