With the outbreak of technological revolution in the future, human beings start to explore different galaxy's resources. As a member of Space Guardian, you are sent to solve emergencies on different planets. You can use the space transition to arrive at the mission's location. Every Mission has its unique plot and they have distinctive style scenes waiting you to explore. During the game playing, you need to dodge the enemy's bullet. After finishing the mission, you will unlock various powerful weapons, you can upgrade them to make them stronger. You will gain diverse achievements with spoils, and you can exhibit them. This game also has Coop Mode. You can at most play with 3 other players.