You can apparently get the demo of Super Mario 3D All-Stars early

I’ll wait till Friday. At least two of the games are running by emulation. The Wii game may or may not be. They claim it was recompiled.

How do I use the emulators for other games? Nintendo’s emulator might be better then RetroArch. Not sure anybody has accomplished that yet. I might be too lazy to read the thread that’s linked to in the source.

Source