Play any type of Game at Y8.com. The biggest Game Collection to play free online. Flash, Unity 3D, Html5, Android, Java and Shockwave.
If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
So your an evil Zombie Cat Monster and you've got some spare time... Why not terrorize a village of peaceful cat villagers?! Sounds like a plan, just be careful as they fight back.