One of the first things homebrewers do when they gain the ability to run unsigned code on a game console is to see what other console's games they can get running. Although the use of commercial ROMs varies from legally ambiguous (in the case of backup copies of your own software) to unambiguously illegal (in the case of just downloading stuff), emulator programs are perfectly legal -- and capable of running legal homebrew software designed for the consoles. We don't really want to get into the legal and ethical issues. We think that programs designed to run like old hardware are just cool.

Just like every other console, the advent of DS flash cards has brought with it a booming emulation scene. And since homebrew is so easy to run on the DS, and MicroSD cards so copious, it's easy to turn the humble DS into a classic gaming Swiss Army System.

We've outlined some of the most important DS-based console emulators below, along with a ton of lower-profile emulators.