Yeah. Background is definitely needed.

I like this! The minimalist hud is a great idea, a good change from all the usual baroque stuff ;) It could be streamlined and trimmed down more, possibly without colors.

There are contrast inconsistencies in the main screen, mostly because of the outline on some elements (unless it defines platforms or obstacles; does it?). I prefer the preview colors!

Yeah I will add a background of some mountains and stuff.

this is cool looks like so much fun.

Cool! I quite like the graphics, although the hud display is a bit too plain for me. Will there not be a background in the final version?