MAME4droid is a version of iMAME4all (Jailbroken iPhone, iPad) for Android, all of them developed by David Valdeita (Seleuco), port of MAME 0.37b5 emulator by Nicola Salmoria and TEAM, and it is based on GP2X, WIZ MAME4ALL 2.5 by Franxis. MAME4droid emulates arcade games supported by original MAME 0.37b5 plus some additional games from newer MAME versions. This version emulates over 2000 different romsets. Please, try to understand that that with that amount of games, some will run better