I like the visuals, the animations and the music very much.
But it is more the hard to calculate the jumps over the gabs.
With the first jump tier, you already lose the orientation, but the second is too heavy over the board.
I was also able to falls away from the dead zone, so I ran on the bottom for a while. UI for Retry should also be navigable with the keyboard when the game is focused on that input.
If you tweak the jump and do some small fixes, this game will be really fun. Good job!