This is fantastic. The music and backgrounds are great, and I really like the easier controls. Holding jump to glide is just so much smoother.
I have one suggestion - releasing and pressing jump again during a jump should end the jump immediately (stop the upward movement) and start gliding. This is very useful for catching rows of bombs halfway up the screen. You already have Down working to end a jump, if you could just add X as an additional input to end the jump then this would make it play more like the arcade original controls.