If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
That Bad Ol' Puddy tat, Sylvester, has locked Hector Up! Help Tweety set him free, you must collect all of the dog bones and unlock the cage. Watch out for those rolling logs!
Arrow Keys - Move.
Spacebar - Jump.
Z - Hit Logs.
X - Attack Cat.