MAME4droid (short for MAME for Android) is an Android port version of the most popular arcade emulator MAME (only version 0.139u1) that was developed by Nicola Salmoria and the MAME team, made by David Valdeita (Seleuco). It is able to emulate all romsets supported by the original MAME of this version.

Without a doubt, MAME is one of the best, most famous and most vibrant multi-system arcade emulators in the emulator history. However, its usability has never been high enough, and its direct support for games is very low - you'll find that MAME can detect and recognize so many games but is not able to play them all, often simply reports that a bunch of files are missing. As a result, many variations of MAME have appeared, and one of AppNee's favorites is MAME32 Plus!.

FB Alpha is a multi-arcade console emulator that takes up less system memory and requires lower machine configuration than MAME, and runs faster with better graphics. FB Alpha Shuffle (full name: Final Burn Alpha Shuffle, FBA Shuffle or FBAS for short) is an unofficial variant version of FB Alpha with many new/different features (that FB Alpha does not support), maintained by KOF2112, Leaf, and Creamymami from China.

Nebula is one of the most outstanding arcade game console emulators, written by EISemi from Spain, who composed the myth of arcade system board emulators. It supports CPS-1, CPS-2, Neo Geo, IGS/PGM, KONAMI arcade game systems. Personally, I think Nebula is one of the best arcade emulators.

WinKawaks (Kawaks for short) is one of the best arcade console emulators, sharing the reputation with Nebula and MAME. It was written by Mr.K based on Motorola 68000 chip, and primary arcade games supported include: CAPCOM's all games on CPS1 and CPS2 arcade system boards, as well as SNK's most games on Neo Geo (MVS) system.