If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
This game is aim-based shooter. You can explore the map, which contain 8x8 stages. The farther you go, the stronger the enemies. You can buy and upgrade weapons to be able to destroy enemies more quickly. The game ends when you clear all stages. Try to do it more quickly.
This game is played with mouse only.