very interesting platformer! it's weird, normally platformers with really slippery controls don't work very well, but i actually thought they were quite interesting here :) i think the fact that the slopes play such a large part in conserving your momentum makes the controls a lot more satisfying than they otherwise would be. a very short game but i quite enjoyed it. i did try to go for 13 coins for the cap, but i was unfortunately not able to find more than 10 ^^; hopefully it wasn't anything too major