(There's no video for DOSBox yet. Please contribute to MR and add a video now!)
DOSBox is an x86 emulator meant for running MS-DOS programs (although it can run Windows 3.1 programs if you have the installation media.) It can emulate a variety of hardware for a pretty good (although not perfect) compatibility.
DOSBox is one of the few emulators currently in development that still supports Power Macintoshes.
DOSBox-0-74-1_Universal.dmg (2.29 MiB / 2.4 MB)
DOSBox v0.7.4 (2010) / DMG image
Architecture: PPC + Intel (universal binary)
Any Mac OS X Macintosh.
Emulating this? It should run fine under: SheepShaver