There are a total of eight selectable weapons. Each falls into one of two types: air-to-ground or air-to-air.

Air-to-Ground:

Missiles and Bombs

MACRO MISSILE	A highly destructive and extremely swift missile. Its explosive power lets it rip through most enemies and some walls. It also damages enemies and objects that contact its blast radius. (This weapon is available from the start of the game.)
EXPLOSION BOMB	Bombs that explode upon contact with the ground. These are particularly useful for destroying turrets and other ground-based targets. (This weapon becomes available after clearing the first stage.)
CLUSTER BOMB	A group of several small bombs that drop from beneath your ship. Use these to make short work of ground-based enemy clusters. (This weapon becomes available after clearing the third stage.)

Laser

WIND LASER	A volley of four curving lasers. The trajectory of the lasers will change depending on how you move your craft while firing. (This weapon becomes available after clearing the fifth stage.)

Air-to-Air:

Guns

ROUND VULCAN	Twin cannons that cover your ship from all angles. Hold down to swing the cannon fire forwards. Release to swing the cannon fire towards the rear of the ship. (This weapon is available from the start of the game.)
MORNING STAR	A field of photons that swirl around your ship. Hold down to increase the radius of the photon field. Release to fire photons in all directions. (This weapon becomes available after clearing the fourth stage.)

Lasers

STRAIGHT LASER	A high-calibre laser cannon. It’s not particularly powerful, but the straight trajectory of the beam makes it an easy weapon to use. (This weapon is available from the start of the game.)
NEEDLE CRACKER	A powerful device that fires lasers in six directions. Once they have flown a set distance, the lasers initiate homing capabilities. (This weapon becomes available after clearing the second stage.)