I liked it, reminded me of Montezuma's Revenge with the way the character walks, climbing ropes and descending down. Visuals look great, dashing is an interesting game mechanic.
My only complaint is lack of checkpoints. Made me ignore all coins just to reach the ending in one piece (I did!). Perhaps instant deaths but few lives and starting at the beginning of the screen would be a better mechanic. Or leave the current health mechanic, but change it around a bit. In many spots the health pickups are in a very risky spot, I often lose two hearts just to get one.