This is a nice little game! :) It was really fun to Katamari my way into everything and slowly grow larger and larger until I HAVE TAKEN THE WHOLE WORLD WITH MY POWERFUL KATAMARI CAR! AHAHAHAHAHAHAH--
(ahem)
People who haven't played/aren't aware of Katamari Damacy will likely be very confused about this game; it'll take a bit for them to understand what they need to do. If I didn't know about Katamari Damacy, I probably would've driven around for a while, confused and frustrated as I run into cars and hear a bad noise, until I happen to hit a small object which attaches to my car; after that, I might start to understand, or I might think I did something wrong. The description is pretty vague, too, and doesn't really help a clueless player; you might want to edit the description or add a screen at the beginning of the game.
Those who have played/heard of Katamari Damacy will likely find this game easy, but fun, like I did. It's a charming little game. The music track is pretty well chosen, though it does run the risk of becoming grating after a few loops. The sound effects are very simple and more of them would be nice (cars honk when you collect them, sound of trees uprooting when you collect them, etc).
I don't understand why the game said "You're a star" at the end. Is this a reference to Katamari Damacy,? I haven't played it, I've only heard of it, so I don't know.
This was a fun little game. Thanks for making it. :)