Hell i don't mind using a Corded PS1 or PS2 Controller to play roms on my tablet with it if will work with all those emeulator platforms i listed. I was wondering if i could either use an old Controller like a PS1,PS2 or get a PS3,PS4 Wireless Bluetooth Controller and pair them with the bluetooth on my Nexus 7 to play the PS1,Sega Genesis,SNES,NES,N64 Emulators? Are the PS1,PS2,PS3 and PS4 Controllers Proprietary and or locked to work only with the Playstation Consoles? Would i need to hack the Controllers like the PS3 and PS4? to work or do they work right out of the box. Just wondering i have seen some people with controllers like SNES Controllers,Playstation Controllers with That have been modified to plug into the Micro USB on Tablets. It is better to play games with an actual physical controller that your hands and fingers remember. I know it is bluetooth capable and the PS3 and PS4 Controllers are Bluetooth Capable as well. I love these systems i grew up with them that is why i still like to nostalgically play them on my Nexus 7. Using an Emulator and the virtual keypad for each of the ancient systems that is in the emulators. Just wondering i have been playing PS1,Sega Genesis,SNES,NES and N64 Roms on my Nexus 7 for the last 2 years.