Xowar
The Xowar, also known as the Xovar, is a species of gigantic gorilla from Rayman 3: Hoodlum Havoc. It was planned to be the boss of the Clearleaf Forest level, and Rayman would have escaped the battle during a race/chase (viewed from the front), while doing his best to avoid certain obstacles (similar idea of the fight with Foutch in Rayman 2), but its size made it too difficult for the programmers to work with, so it was replaced by Master Kaag.

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The Xowar can still be seen at two places in the final version of the game:
1. In a secret room found just before the final Reflux fight in the Tower of the Leptys. In this secret room, generally known to players as the 'Xowar Secret', there are three room-sized (and unbreakable) cages, each containing a different scrapped character. One cage holds a tiny jumping blue bird, one holds an in-game model of a Flabar similar to the one in the intro video (except the one in the cage is blue), in the third cage is a Xowar running on a treadmill.
2. In Clearleaf Stadium, the area of Clearleaf Forest in which Rayman fights Master Kaag, there is a 'Wanted' poster depicting the Xowar. It has been speculated that the Hoodlums want him for his fur for their costumes.
On one of Rayman 3's loading screens, a Xowar is shown, lining up with various Hoodlums for a police mugshot. A similar loading screen is presented in the demo version of Rayman 3.

Media of Xowar
Videos of the Xowar Secret
The poster of Xowar 3:08-3:15