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).
Sometimes it's the simplest games that are the most fun. How about playing tennis with yourself? All you need to do is concentrate and make sure that the ball remains in the air. Try it out. How long can you keep the ball bouncing?