Your space ship is equipped with an arsenal of the best weapons available. Each of the 4 different weapons comes with an additional high-powered upgrade that really blasts away your enemies. These upgrades drain lots of energy, so you should really collect the energy pods that appear on the screen when you kill an entire enemy wave. Switching between weapons is easy -- just use your thumb to select your favorite weapon on the Nintendo DS touch screen.
But instead of describing the weapons, check out the video below to witness the incredible power of your weapons.