sorry but thats a disapointment
demos are an instant failure because of the annoyances it causes especially considering you didn't put anywhere on newgrounds that it was just a demo. you could have at least been nice enough to warn the community. the game play was simple and somewhat entertaining wile you tried to figure it out but overall way too easy. 5stared the first track in 4 rounds (one of witch i stopped on the loop just to kill them :P) second level 5star second time... way too easy. if you wanted to pull people to actually purchase your game you should add more levels to the demo. maybe the two beginning ones then a couple of random different ones from the harder levels or the first "park" at least.
I for one was upset at the end and will not purchase the premium for any amount of money and most from this site will probably follow this. well thats just my... um... $.10 i guess good luck on your next money making endeavor.