Hm, the concept is interesting, but I’m not sure why Yellow and Green provide a buff while Red and Blue provide a penalty. Didn’t check the exact score though, maybe the penalties give even more score? But the Red penalty of self-destruction leads to Game Over, any way to escape it?
Otherwise, I got a controls issue where changing direction twice in a row doesn’t register the second change. You need to hold the direction the second time to make sure it’s registered.