Guardians of the Light is an upgrade shooter. Each level you earn points that can be redeemed toward upgrading one of four weapon types, your shields, increased speed, a magnet to help attract money and additional bombs. There are thirty levels to pass and you earn a star for defeating them without damage. Three difficulty levels, easy, medium and hard. There is also an independent survivor mode where you start with the most basic ship, earn upgrades as you play and play as long as you can.