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).
Free Online Games brings us this nice isometric tennis game. It's quite easy to get into, but you can set the game up to be more difficult.