If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Something is awfully wrong in Dimmsdale. An inexplicable army of fuzzy but furious bunnies and delicious but dangerous ice cream monsters have invaded the town. It's up to Timmy, with the help of Cosmo and Wanda, to save the day yet again!
Left / Right Arrow Keys - Move.
Up Arrow Key / Spacebar - Jump.