PSPMaster v006b (Master System and Game Gear Emu for PSP)

[ACID]

The PSP has a 16:9 screen, and this emulator works on it, so, yeah it supports a 16:9 screen.

If you mean, does it alter the SMS game's screen display from it's original aspect ratio, warping the image making everything short and fat, then no it doesn't do that.

It does have a stretch mode that fits 80% of the PSP's 16x9 screen. Though.

And this is the ONLY SMS emulator that runs ALL the SMS roms available, and works on ALL PSP firmwares.

LOL. i know the PSP has a 16:9 screen. And as far as the only emulator i suggest you try E(emulator) its as good and supports the wide screen use of the psp.

[SmashinGit]

Nearly missed this, to much excitement with the gba emulator

[Sharkey]

What's better, this or the new MMSPlus?

[Pumped'Up]

I'd give e[mulator] as the best all-in-one. It does all the emulators (SMS, GG, PCe, NES, etc) outstandingly...I just hope it will support SNES and Genesis one day so there'll be less "bulk" in the homebrew folder!