After years of not caring, Google yanked all the console emulators from the Android Market. Never fear, however, you can find them many of them (for free even!) at the off-market Android store SlideMe.
Yongzh, the guy behind some of the most popular Android emulators around–including Nesoid, SNesoid, and GameBoid–dusted himself off after being booted from the Android Market and put his emulators up on SlideMe.
For the next week or so he’s offering them as free downloads to ensure past customers can grab a copy without being double billed. After this generous free period they’ll return to their previous prices ($2-3 historically).
Hit up the link below to grab a copy and, when they return to their regular pricing, consider purchasing them just to kick a few dollars towards a customer-friendly independent developer that helps you get your retro gaming fix.