Balloons come in a variety of colors, tied to a weighted string that keeps them suspended in mid-air. In the Battle Dojo, balloons are decorated with the Battle Dojo logo. Balloons in the tutorial and the E3 Demo's tutorial have the Turf War logo, and balloons in Octo Valley have the Octo Valley logo.
Balloons act as targets for testing weapons and Splatoon's controls, as they can be popped by shooting at them with Ink. In the Battle Dojo, popping a balloon awards one point normally and two points during the last minute of the battle. In Octo Valley, balloons often contain Power Eggs, which are automatically collected when they are popped.