It runs Doom.

That's right, even the Jellie Frontier runs Doom. Enjoy.

Instructions

  1. Click inside the iframe (box) on the purple background.
  2. Hit Enter on your keyboard.
  3. Play!

Controls:

Action Key
Move Forward Arrow Key Up
Move Backward Arrow Key Down
Turn Left Arrow Key Left
Turn Right Arrow Key Right
Strafe Left ,
Strafe Right .
Attack CTRL
Interact (doors and switches) Space Bar
Select Weapon Numbers 1-7 (not numpad)
Menu ESC