If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Manage to safely make your way through a darkly light maze filled with spikes and other deadly hazards. Create light and avoid getting killed by the enemies by shooting light at them. Also be mindful of the amount of lives you have because once you run out, you will have to start over.
Use WASD or Arrow keys to move.
Mouse to aim to shoot.