The movement feels great and there's a nice amount of juice. I like the enemy variety, just as I was wondering if there was any more, it was like you'd read my mind and a new enemy type appeared.
Once I had cleared wave 8, nothing seemed to happen, I'm unsure if this was intended. A small end screen would have been nice to just confirm I had finished.
All in all it was enjoyable and didn't overstay its welcome, thank you.