It's basic. But that's normal for your first game.
2nd, it needs music, a video game is nothing without it.
I do like the controls, they are very good. And I like it because they're tight, and I found out that if you fall, and you quickly jump while in the air, you'll jump a small height, which could save yourself from dying.
Overall, It has great potential, and with more and more practice it'll only get better!