Mario 64 Prisma 3d ((top)) -

Add another sphere above the torso. In Face Mode, select a few front faces and slightly extrude them forward to form the base of his nose and mustache area.

Creating Super Mario 64 Assets in Prisma3D: The Ultimate Mobile 3D Modeling Guide

Many mobile animators share custom-rigged Mario 64 models in Google Drive or MediaFire links directly in their video descriptions.