The Monster is an inverted roller coaster located at Walygator Grand-Est, Maizières-lès-Metz, Lorraine, and was the first in France to be built by Bolliger & Mabillard.

The roller coaster originally opened in 1996 at Expoland in Japan as Orochi, which closed in 2007 and was later relocated to Walygator Parc, where it reopened on 9 July 2010.

[6] In 2016, plans were shown which included an overhaul of the Monster's area, adding a station roof and surroundings with a pirate theme.

At the top, the inverted train dips slightly before turning left ninety degrees as it drops 119 feet (36 m) down the first hill.

The ride finishes with a 1.5 revolution flat helix where riders encounter strong positive G-forces before making one last left turn into the final brake run.

The ride is identical in layout to Raptor at Cedar Point, the only deviation being the absence of a midcourse brake run.