If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Blue is a fast paced platforming and avoiding game! In Ring Mode, dodge the bouncing balls and collect rings to continue to the next level. Need more of a challenge? Try getting a high score Frenzy Mode where every ring you collect spawns a new ball. The entire game can be played in co-op mode, you'll be able to collect rings twice as fast, but will also be twice as vulnerable!