Have you been looking for a single frontend menu app to unify all of your android emulators? Wish there was a way to show all of your different games with cover art and descriptions instead of just titles? Nostalgia is your answer. For now, Nostalgia requires a controller to use and is designed for TVs.
Tested controllers: Ouya, Wireless Xbox 360, Nyko, Moga, Wired PS3. Others may work but haven't been verified.About this in-app purchase:
• There is only one in-app purchase in Nostalgia.
• There is one purchasable now, and there will only ever be one purchasable.
• It is a one time charge to remove the demo limitations.
• Once you purchase it, you will have access to unlimited systems and emulator configurations forever.
• Beyond this one purchase, I will NEVER charge for additional features of Nostalgia. Ever.What is demo mode?
The ONLY limitation in demo mode is that you can only select one game system to launch an emulator. You can still use all the other features and fully populate all of the menus for any system you have so you can see what it will look like.What is Nostalgia?
Nostalgia is not an emulator. Nostalgia is a unified frontend menu for managing your emulators. It was originally developed on the Ouya android console and has been running on consoles on that platform since 2013 with more than 7000 users. Nostalgia is a user interface compatible with many android emulators. Install the emulators and then use Nostalgia's configuration menu to set the emulator to use and the game directory. Once you have set those fields, Nostalgia can go out and fetch the best shot at the cover art and descriptions for the games. Once those steps are done you will have a fancy new menu for each of your emulated systems with cover art and all. You can see the complete list of compatible emulators below. All screen shots are of the menu for Android applications. For legal purposes, I am not showing game covers, but this is representative of how the emulator menus look as well.Some of the Features:
• Automated Cover and metadata fetching
• System and game level emulator selection
• Multi-platform game searching
• Set-and-Forget menu locking so your friends and family can't mess up your menu
• Custom wallpaper
• Favorite and Completed tagsCurrent supported Emulators:
• Mupen64 Plus AE
• Fpse
• MD.EMU (no gamegear)
• NES.EMU
• SNES9x EX+
• GBC.EMU
• GBA.EMU
• PCE.EMU
• C64.EMU
• 2600.EMU
• NEO.EMU
• NESoid
• SNESoid
• N64oid
• Gensoid
• Gearoid
• GBCoid
• Gameboid
• ePSXe
• MSX.EMU (colecovision)
• Retroarch
• Reicast
• Drastic
• SuperGnes
• PPSSPPThe app is still under development and feature requests are always welcome.You can follow @Zamastyle on twitter for updates on all things Nostalgia

// Option A //

To download Nostalgia mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Nostalgia mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Nostalgia from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Nostalgia in HappyMod App.