After 30 minutes of attempting to download/find a GBA emulator for iOS 8, I have decided to just downgrade my iOS. However, I don't know how to do that 
Does anybody know how I can do this without jail breaking?
(Or alternatively an emulator for iOS 8.1.3) |
There is a way but it is rather messy and not free. It involves registering your device under an iOS developer account, and then taking emulator application packages and code-signing them to your device. This then allows you to install them to the device via iTunes.
Some jailbreak apps can be converted and installed onto non-jailbroken devices in this way, but often they cannot use all of their functions correctly.
Currently there is no publicly released utility for downgrading from iOS 8 to iOS 7.
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As for N64 emulation, the only working one I have used on iOS 8 is RetroArch, which emulates multiple systems. It runs at full speed (30-60FPS) on devices released in 2011 or later. The problem is that finding a non-jailbroken install of it is difficult, and it cannot be easily complied and code-signed using the above method.