Luckily, you can use the L trigger to rewind gameplay (an awesome feature) to reduce dependence on save states. Most of the time, trying to save will lead to loading, and trying to remap buttons will lead to stretching the screen resolution, or something like that. NESDS: This NES emulator has excellent compatibility and speed, but one fatal flaw cripples its feature set: the touch-screen menu is beyond inaccurate - selecting something from the menu is nearly impossible. We've outlined some of the most important DS-based console emulators below, along with a ton of lower-profile emulators.

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. Just like every other console, the advent of DS flash cards has brought with it a booming emulation scene. We think that programs designed to run like old hardware are just cool.

We don't really want to get into the legal and ethical issues. 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. 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.

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