Quote Originally Posted by Aussie2B View Post
There's Goemon's Great Adventure, Tarzan, Mischief Makers if you count what little 3D it uses, probably more.
Yoshi's Story and Paper Mario, as well.

Quote Originally Posted by BetaWolf47 View Post
Didn't know Goemon's Great Adventure and Tarzan were 2.5D. Mischief Makers doesn't really count
Why not? Several levels feature polygon-based backgrounds and other levels feature gameplay on the Z-axis. I definitely consider Mischief Makers 2.5D.