Rainbow M
A Rainbow M,[1] or "M" Teleport,[2] is a multicolored M Graffiti used to teleport Mario or Shadow Mario to a specific part of Isle Delfino. Rainbow Ms serve as a subset of the Level Gate.
There are three Rainbow Ms, all of which are found only in Delfino Plaza. The first was painted by Shadow Mario to escape Mario after he foiled the former's first attempt to kidnap Princess Peach in Delfino Plaza. This one was painted on the base of the Grand Pianta Statue, and it leads to Bianco Hills. Two more Rainbow Ms can be found on the side of the boathouse (leading to Ricco Harbor) and on the front of the lighthouse (leading to Gelato Beach). These Rainbow Ms appear only after the Polluted Piranha Plants covering the buildings have been defeated.
To activate a Rainbow M, Mario has to squirt water on it using FLUDD, after which it becomes a portal to its corresponding location. The goop that comprises the Rainbow Ms is also found inside two red Warp Pipes: one on top of a building located behind the Grand Pianta Statue (where it is plugged up by a large pineapple at the start of the game), and one on top of the Shine Gate. These Warp Pipes provide access to Sirena Beach and Pianta Village, respectively.
Mario can use a Rainbow M by jumping into it. In doing so, he is fragmented into multiple particles before entering, after which he is reassembled at the start of the level. This feature is similarly implemented into a few later Mario titles, particularly Mario Party 8, whenever a playable character uses Candy, or Luigi's Mansion: Dark Moon, when Luigi is transported through the Pixelator.
