In Swarm you control a tank equipped with a powerful laser gun. Evil bugs are invading, and it's up to you to protect your base. Use the LEFT and RIGHT arrow keys to move your tank, and the SPACE BAR to fire your weapon.

Some of the enemies will be different colors, if you shoot one of these enemies a power-up crystal will drop. Collect the crystal for one of seven special effects including a smaller and larger tank, and an extra shield.

Four brown blocks will protect you from enemy fire, as these get shot they will reduce in size. Make sure you don't shoot them by accident!

Green-Blue = Small tank
Green = Large tank
Yellow = Slow tank
Blue = Fast tank
Orange = High power weapons (they shoot 2 maybe 3 enemies)
Pink = Extra shield (means you can get hit one more time)
Brown = This rebuilds your towers