The game is harder than flappy bird, but not for the right reason, as it seems that the jumping mechanic is modified from what flappy bird uses. I noticed that after one normal jump, the next 2 or 3 jumps are random. They can either be too powerful or too innefective.
Also, I think that the points should be awarded for the number of pipes passed, not just by the number of jumps, as you can spam the jump button at the start and always have a score over 40 or 50.
I liked how the game looks, though.
Have fun continuing this project!