Outslays are snake-like creatures that guard the Gomander. They are similar to Gondolans, except they don't circle around, guard items, or hurt you. They first appear in the autoscrolling section of Bydo Station, trying to attack Mario and gang with 8-way spread bullets. They also appear in the Gomander boss fight, where you need it to jump on the weak point. However, they don't serve a purpose for the second phase of the battle. The only way to defeat it is by firing fireballs at its segments, but during the boss fight, they can respawn their segments.