Not my preferred platformer, but I can see how it's a good game. I beat the available levels, the main thing I had trouble with was understanding how far away until I can or cannot hook into a dotted line. Besides that, just beating the levels with 1 or 2 stars wasn't that hard. I found it odd how I couldn't enter the race at the end though, maybe I needed more stars? But it didn't state an unlock requirement, and I couldn't use any input to press the begin button.
Also, the player sprite doesn't really look like a rabbit, more like a humanoid with antenna. Not that it matters really. And, I just noticed that the reticle shrinks with available energy, nice touch.
Guess that's it. Keep up the good work.