- For the main story level, see Aquatos's Sewers.
Aquatos Sewers is a small non-symmetrical map designed for small Deathmatch games. It consists only of large intersecting sewer pipes, but unlike in single player, you cannot climb them with Gravity Boots. The combat concentrates at the intersection in the center. There are crates and ammo packs scattered all over the map, mostly spawning at the intersections. In Capture the Flag mode the flags spawn in the opposite directions from the map center.
- Ratchet & Clank: Up Your Arsenal (first appearance)