very good for what is is
This is very good for what is essentially an interactive flash movie, but as it is trying to be a sonic game, it is very poor in comparison to the original games. For example it does not have the temporary invulnerability after getting hurt which is an essential part to any game that does not want to irritate the fu*k out of players. Also the collision detection and game play do not quit reach the standards of the original. Still this is very good for flash!