The game is a third-person action/platformer/shooter. The enemies are aliens that teleport in around the player based on events that are triggered as the player explores the environment. The game has a strong platforming factor, with elements such as rotating 3D sections which have to be navigated while shooting at aliens. Puzzle elements tend to be limited to simple "find the switch to proceed" scenarios. However, some of the elements within the game require the player to utilize different weaponry in certain situations in order to advance to the next area. Blasto is one of the few PlayStation games to use both control sticks. The left stick offers better movement control than the D-Pad and the right stick can be used to adjust the player's aim.