Super Mario 64 DS Never Was

Super Mario 64 DS Never Was is a mod that slightly changes the SM64DS story to have it make more sense and canon to the Mario series by adding in a few new things and better mechanics, including Waluigi.

What's different: Waluigi as a playable character. Castle Grounds Cannon is always open. Black box that takes you to the castle guest bedroom, which has a hidden hole that takes you to a dark hallway, where Waluigi's key is hidden. The main castle doors are the way they should've been by not having locks present. Every Character wall jumps in the game instead of just Mario as it should've been based off the original game. Plus a few new stars, with an actual silent room behind the silent room door.