I had a lot of fun with this, nice job! The movement is tricky, but kind of satisfying once you get the hang of it. I feel like the gameplay is pretty much there (though I'm still not 100% sure I understand the difference between acceleration and gain powerups). And it was really satisfying watching the lawn get mowed as I moved around.
I feel like there are some really solid bones here, and this could turn into something really great with a little more polish and juice. Nice work!