There are many weapons and items you can use in the game. To fire, press the [CTRL] key. You start out with some ammo for 3 of the weapons (the blaster, the laser, and the rocket launcher). To switch between weapons, press the [KEYPAD 0] key. You will also automatically switch weapons when you run out of ammo for your current weapon. There are other weapons of destruction you can get; but for the moment I'm only going to go over the 4 most common ones:

	Your Blaster shoots red projectiles fairly quickly; but while it has infinite ammo, it is relatively weak and has a short range.
	Your Laser is an "upgraded" version of the Blaster. It fires somewhat more slowly; but does much more damage to shields, and has a longer range. It fires a silver-colored projectile.
	The Rocket Launcher fires miniature missiles that fly in a straight line. It takes a moment to load each rocket - so the firing rate is very slow; BUT, it usually only takes a few shots to take out any enemy - especially if their shields are depleted. You also get a camera view of your rocket when you fire one; so you can track their progress in flight.
	You don't get the Flamer weapon by default; but since many people opt to add it to their tech. slots, I wanted to cover it here briefly. The flamer takes a moment to ready; then fires out a large but very-short-range flame. You can only fire it while totally stationary; and the long ready time means that its really only effective against slow moving or trapped targets. Its saving grace is that it bypasses shields altogether, doing damage straight to the armor or health of the target.