If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Even though it inherited the title from the original Tron, Space Paranoids is very aptly named. Because your advantage lies in speed, not firepower, the game encourages a lot of running away and waiting for enemies to come to you. Space Paranoids is not just a good advergame or a nice taste of nostalgia; It's also a fine game in its own right, and a great example of what the Unity engine can do when done well.
W,A,S,D / Arrow Keys - Move.
Spacebar - Center tank.
Mouse - Aim / Shoot.