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Water Valves are blue variations of Warp Pipes that appear in Mario vs. Donkey Kong 2: March of the Minis. They appear with red colored handles and a yellow flashing arrow. They are used to fill certain areas of a level with water when they are tapped, allowing the Minis to cross over otherwise unreachable ledges. The water level will sink after a few seconds, however, and the water level can be risen again by simply tapping the Water Valve again. They are encountered in only two levels in the game, Room 3-2 and Room 6-2 and appear alongside normal Warp Pipes.