Unlock the following modes by performing the corresponding tasks:

MODE - HOW TO UNLOCK
Mix All: Shuffle - Score 10 or more points in the "Wario-Man Software: Ultra Hard!" mode.
Mix All: Ultra Hard! - Score 10 or more points in the "Wario-Man Software: Ultra Hard!" mode.
Mix All: Versus - Score 10 or more points in the "Wario-Man Software: Ultra Hard!" mode.
Wario-Man Software: Shuffle - Encounter all 72 different Wario-Man Software games.
Wario-Man Software: Ultra Hard! - Score 25 or more points in the "Wario-Man Software: Shuffle" mode.

Unlock all 72 Microgames and score 25 on the Mix to unlock the Ultra Mix. Score 10 on the Ultra Mix to unlock the Versus mode.

Unlock all three "Mix All" blenders. Each DIY shelf blender can be played with the five character game templates.

Name your microgame "Mario Paint" to hear music from that game at the editing screens.
Alternately, import the Mario Paint microgame from 9-Volt's games. Edit an object to listen to the music.