Hacking Any gecko trainers for Mario Kart 8?

[RemixDeluxe]

Last I recall there was one that allowed you to unlock everything off the bat but the catch was it was only good for that play session and nothing could be done to save it regardless of what you did, this was awhile ago and I was hoping something has been made since. I also tried looking into ejecting a 100% game save but that doesnt seem to work correctly too.

 

[RemixDeluxe]

Instead of a trainer I did find this posted

https://gbatemp.net/threads/post-your-wiiu-cheat-codes-here.395443/page-220#post-6940936

So how would I use this? Do I need to have something prepared on the SD card before launching the game and JGecko U or can I use this straight away on JGecko U? I've never actually used codes before with it, I've only used it to search up values in memory addresses.

 

[SkittleDash]

Instead of a trainer I did find this posted

https://gbatemp.net/threads/post-your-wiiu-cheat-codes-here.395443/page-220#post-6940936

So how would I use this? Do I need to have something prepared on the SD card before launching the game and JGecko U or can I use this straight away on JGecko U? I've never actually used codes before with it, I've only used it to search up values in memory addresses.

All you need to do is launch Gecko on the game you wish to play, then connect with JGecko U. Select Add Code and enter the one you saw in the thread. Then select send codes. That's it.