A Circle's Adventure(work in progress)

GMC topic: http://gmc.yoyogames.com/index.php?showtopic=485544&st=0s
Caifox topic: http://www.caifox.com/cff/viewtopic.php?f=18&t=1365&sid=c89d38126bfbdc8cbf7a030899dd7b8f

You control a blue circle on his way to the goal.
To get there, you need to ride on a circle.
You can rotate it, change it's size and even jump off it!

Instructions:
Arrow keys to rotate and resize, space to jump off the circle.
Press <ESC> in-game to quit.
Press F1 to display this information screen.
Press F4 to toggle fullscreen.
Press F9 to take a screenshot and save it in the game folder.

Current features:
Initial release:
Four levels

What you can expect in future updates:
Level Editor
More levels(ofc)
Enemies
Power-ups
Progress system(completed levels will have an icon, you need to unlock some levels etc.)
Achivements

Credits:
Idea by Alfred0110
Programming by Alfred0110
Graphics by Alfred0110(except for the wall sprites, they're included in Game Maker).
Level design by Alfred0110
Inspired by Circle Rider by Spydog
Made with Game Maker 8 Pro by YoYoGames
Music by Caleb Cuzner
Special thanks to xot for solving surface problems

Any comments, suggestions, ratings or bug reports are greatly appreciated!