Did you play roms as a kid?
Here is a list of all the emulators available for android :)
Gameboy Advance Emulator for Android
https://play.google.com/store/apps/details?id=com.fastemulator.gbafree
https://play.google.com/store/apps/details?id=com.fastemulator.gbafree
SNes Emulator for Android
https://play.google.com/store/apps/details?id=com.bubblezapgames.supergnes_lite
https://play.google.com/store/apps/details?id=com.bubblezapgames.supergnes_lite
Playstation 1 Emulator for Android
https://play.google.com/store/apps/details?id=com.epsxe.ePSXe
https://play.google.com/store/apps/details?id=com.epsxe.ePSXe
NINTENDO 64 Emulator for Android
https://play.google.com/store/apps/details?id=com.supern64.n64.emulator
Nintendo DS Emulator for Android
https://play.google.com/store/apps/details?id=eu.codlab.ds4droid
PSP Emulator for Android
https://play.google.com/store/apps/details?id=org.ppsspp.ppsspp
https://play.google.com/store/apps/details?id=eu.codlab.ds4droid
PSP Emulator for Android
https://play.google.com/store/apps/details?id=org.ppsspp.ppsspp
I was very surprised, but PPSSPP ran perfectly smooth on my Samsung Galaxy Note 10.1
Enjoy