The basic weapon is fired automatically.
Pressing and holding the p-button increases the energy bar, increases the energy bar to 1 2 3 F, and then releases the p-button to fire the corresponding weapon.
Through store, basic attack speed, number of guided missiles, and duration of power weapons can be upgraded. It can also add satellite weapons and item pulling functions.
You can check the status of the upgrade through the info menu.
Weapons and stages will be continuously updated.