Mechawiggler

Mechawiggler is a boss encountered in nighttime Metro Kingdom, which is defeated to advance the kingdom to its daytime state. The fight consists of capturing a Sherm and firing bullets at its body segments when they stop and glow. There is additionally a rematch found in a castle tower on the east side of the Mushroom Kingdom.

The Mechawiggler fight in the Metro Kingdom can be skipped entirely using Morning Metro.

Gameplay

During the fight, Mechawiggler alternates between a vulnerable phase, in which it crawls along the walls of the arena and shoots projectiles, and an invulnerable phase, during which it will emerge from the wall and charge along the ground at the player multiple times. In the vulnerable phase, it will only become vulnerable a few seconds after starting the phase, which gives the player a good opportunity to begin removing some of its projectiles by shooting Sherm bullets at them. Once vulnerable, the player can begin attacking the body segments of the boss, which also deals splash damage to other nearby segments. Once all segments have been deactivated, the entire Mechawiggler will glow and the player must shoot it six times to complete the hit.

Unlike most bosses in the game, Mechawiggler only requires two completed hits to defeat. However, if the player fails to deactivate all the segments within a certain timeframe, the Mechawiggler will retreat back to its invulnerable phase. This prolongs the fight and can be a major time loss for speedrunners, but preserves the segments that were previously deactivated.