For as simple as this is, I love how much polish is on it. The controls feel great. Post processing and particle effects give it a great look (I'm definitely going to be studying this part). I particularly like changing to the color of the platform. UI elements are clean.
My only suggestion would be maybe some sort of 'next platform' indicator. So players could chain combos a little more.
Strong concept. Would love to see this fleshed out a lot more. Great work!