I don't mind the controls, I think it's fine. I'm not sure how building up speed seems to factor into the gameplay though, it seems like it matters for a little bit at the very beginning of the game. I also think that surviving in the game becomes trivial after a little bit. I think you could have improved the game by removing death entirely, putting the game on a 30 second (or maybe one minute to fit the theme) time limit, and then having bombs only stun you. That way speed matters more and the game has a more interesting way to challenge yourself. Note also that there's a bug where if you reset the game, your score doesn't reset.