I finished your game in 40:33:896 with 428 jumps and 3/5 collected coins.
The game is really enjoyable, I like the graphics and the audio both music(fit the game 100%) and SFX.
I like that there are bars to measure the power of horizontal movement and jump.
It looks like you inspired by Jump King and it is really awesome that you make your own version.
There are two bugs that I have encountered, the first one is sometimes the character won't react to my input in specific locations like at the very end of the edge (happened to me maybe 3 times).
The second one is there was some jittering when the player is on moving platform.
But both those bugs did not effect the game that much.
Congrats, Great Job!