Did you randomize the level layouts for each playthrough? If so, Great job in making sure each playthrough is unique. maybe try to increase the jump height for the space-cat, but otherwise, i loved my time with the game.
Yes, a SPACE-CAT!! You get two extra points in creativity for that itself! :D
Please do try my short game and give me your opinions as well. I've built a game that i wanna grow and ship someday :)