Whenever you start a new stage, or continue your game after losing all shield bars, you can choose one of eight weapons to equip.

Each weapon has multiple levels, where the weapon can become stronger and can sometimes behave differently. You level up your weapons by defeating enemies to fill up the Weapon Level Gauge.

Note:

• You will keep your weapon level, along with the current fill level of your Weapon Level Gauge, even if you change to a different weapon.
• When you reach the maximum weapon level, you will get a shield bar for filling up the Weapon Level Gauge.
  

Vulcan Shot	Standard bullets.
Laser	A straight, concentrated laser.
Atomic Blaster	When this hits an enemy or projectile, it will explode and all enemies caught in the blast radius will take damage.
Homing Shot	These shots home in on enemies but are comparatively weak.
Exploding Shots	When this hits an enemy or projectile, it will scatter and shoot smaller shots in different directions.
Search Laser	This laser targets enemies automatically and deals a great deal of damage.
Photon Cannon	Hold down to charge this, then release it to shoot. Charged shots are very powerful and can pass through objects. While charging, your satellites create a shield which protects against standard bullets.
Grenade Launcher	These mines explode after a set time or when touched by an enemy or projectile.