[Xperia Play Themes and Apps] Toasty Clown:
N64oid

Don't get me wrong; I'm a bigger Mupen64Plus AE supporter than I am for N64oid, but when I play, say, Ocarina of Time, I want as close to a lag free experience as possible... even if the quality's not all there, for example, the inventory's background 'snapshot' function isn't emulated causing a very jarring (2-4 seconds) delay between pressing the start button and having the inventory show up. The lens of truth randomly works: the emulator varies between blacking out the area around the lens' 'circle of vision' and blacking out the actual 'circle of vision' making the tool useless. Also, when experiencing points of great lag, the emulator shuts down without warning and with no automatic backup function to speak of, getting back to where you are can be very annoying. "Hey, why don't you just make a save state when there's lag to minimise the time needed to return?" you may ask, well, and mind you this may be my worst problem with the emulator, if you attempt to save during such lag, there's a nastily high chance (for me anyway, and this is with the processor at 1.4ghz) that while the emulator is writing a save, the emulator will shut down, either not saving your state and making you go all that way back from wherever you last saved, or in the worse case, corrupt your save.

The emulator's good, maybe even great, but for the love of all things convenient, be careful when you save.

ePSXe

Not my final decision, I'm still looking around for the very best, but with the right settings, this emulator's accuracy has been near spot on with the games I have tested (Resident Evil 1 & 2, Crash Team Racing, Medievil), the only drawback I have encountered is a distracting audio delay of which I have currently found no workarounds.

I need to put more time into testing this emulator before I can come to a full conclusion.

Snes9x EX+

This is, safe to say, my most favoured SNES emulator, an android emulator with the quality of a PC emulator, to date I have yet to find a single legitimate flaw, and with my current clock settings the emulator runs at full speed despite EX+ being the more power hungry version. On a side note, I consider the .emu series' (this included) UI to be more difficult to use than N64oid's; .emu's consists of various thin rectangular 'buttons' that are easy to miss with thumbs temporarily flattened from constant button pressing, the buttons also tend to not register touches on occasion, as it would appear you need to hold the button down for a short time for it to actually work. N64oid's UI suffered from none of this as its buttons were far thicker and didn't require holding down to work. Again, flat thumbs + narrow buttons make for a very tricky user interface.

I highly recommend this emulator for anyone after a good SNES experience. As of the time of this post, SNES9x EX+ is free to download from both the developer's website and the Play Store, so there's nothing stopping you from at least giving it a try. Just use a finger when navigating the menus to save yourself a lot of rage.

GBA.emu

I'll admit, I'm being a horribly unfair this, because I haven't actually tried any other GBA emulators, this emulator had all of the features I was looking for (stability, speed, accuracy, etc) and was from my favourite emulator developers so I simply never found a reason to try others. However, unlike the emulator above, GBA.emu doesn't currently support cheat codes so if you want that, either support development or look elsewhere, I wouldn't blame you.

I'd look elsewhere for a valid opinion on this. But if you're gonna take my word for it and you don't care about codes, go wild.

MD.emu

As a past Mega Drive fanatic, I scoured the internet looking for the best of the best; which bore all of the features mentioned above and had plenty of tweaks available (region change, MK III audio, turbo button) and this, to me, was a dream come true.

Don't let the price tag put you off, if you're as big a detail nerd as I am, you will not regret installing this.

NES.emu

I'm beginning to repeat myself so I'll save you the time. I don't have many games to test this emulator with, what I have seen is promising, but it's what I haven't seen that worries me, there might be flaws, there might not.

I'll leave this one up to you.

Call me a .emu-sheep, but of all of the emulators I've tried, (I'll save you some bandwidth and not list them all here) those, to me, were the very best. Not to mention, the emulators are based off of the European versions of the consoles in many ways except framerate (which is a good thing, 50fps was just cruel), makes me feel right at home.