ePSXe PS1 - One of the best PlayStation One emulator on Android. The application will allow you to run PlayStation One games on your Android-devices. In its properties ePSXe has nothing conventional, ie, it does not differ practically nothing from other similar emulators
Aemula for Android - Aemula is an i486 PC emulator for Android tablets. The software comes with a bootable disk of FreeDOS (a DOS-compatible operating system) that allows you to run classic DOS games and programs. If you own a copy of MS-DOS 6.22 or Windows 3.1 you can also install them on the virtual PC
MAME4droid Reloaded is developed by David Valdeita (Seleuco), port of MAME 0.134u4 emulator by Nicola Salmoria and TEAM.
MAME4droid Reloaded emulates arcade games supported by original MAME 0.134u4.
This MAME4droid version is targeted to Dual-Core devices (1GHz and 512MB RAM minimum), because it is based on a high specs 2009 PC MAME build
Perfectly support the classic games like king of the fighters,Cadillacs and Dinosaurs,Street Fighter, Metal Slug,Final Fight,Samurai Shodown,Contra,Super Mario,Oriental Legened Super,Teenage Mutant Ninja Turtles,Final Fantasy,Dragon Ball Z,Super Robot Wars Rockman and son on