Great work so far, keep it up!
One thing I did find a bit crazy was the amount of coins that explode across the screen. It goes well with the over-the-top feel of the game, but it clutters the rooms a bit and makes it hard to see enemies. Maybe try to make enemies stand out more over the coins. Or just decrease the amount (not too much though) and up their value.
Still a great game so far, cant wait to see what comes out of it.