Flags are a common feature in levels of the Yeah Jam Fury series. In both games, they are used primarily to mark the start of every level and set a checkpoint there. In Yeah Jam Fury: U, Me, Everybody!, their function is expanded to lock certain characters the player can use after passing the flag or the beacon it creates upwards, which can be stopped by a block.
Flags also come in a variety of colors, depending on their function and the level's theme. In the original Yeah Jam Fury, most flags are green in color, with black flags in Desert-themed levels. In its follow-up, however, the color of flags is now denoted by which character it locks the player to: yellow for Yeah, blue for Jam, red for Fury, and green for all characters (unless one is excluded). Desert-themed and Danse-themed levels retain the black color, and the yellow, blue, and red flags instead contain the letters Y, J and F respectively to indicate the character they lock. Additionally, the pole of the currently active flag is generally striped to indicate this.