Cute visuals and music choice! This was enjoyably frusturating! reminds me of Getting Over It or Only Up. Took me a while to get used to the controls, so I would make the beginning a little easier so you don't lose people.
Also, I got stuck up where there's those two bouncy pads and I couldn't jump out of it or anything.
Some advice for the pixel art, make sure you don't mix pixel resolutions. When you scale up a low resolution pixel sprite(the crater platform for example) and put it next to a high resolution one(the player), it looks a little slapped together. The art itself is really good!! I think if you fixed that, the game would look a whoooole lot more polished.
Love the space cat! Good job!