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So after contacting Sono and having him help me get saving working WITH rumble, the hard part was finally over. (With the stock ROM, you could either save, OR have rumble, but not both for some reason.)

So with that fiasco out of the way, I got to work on the label art in Photoshop. Found a high quality source image, had to edit a few things to get everything looking proper, extend the sides a bit so the image wouldn't be stretched, sent them off to be printed by stickeryou.com, and I think it turned out fantastic. I wanted the label to appear as if it were actually sold and licensed this way.

For the hardware side of things, the rumble carts come from AliExpress, and are based on HDR's work, with changes made to the layout. From what I can tell, they use real harvested MBC5 chips too. It also uses FRAM to save batteryless.

*reply to follow this post*

Will you also include software patches? I have some other patches in mind, like making it so continuing a save doesn't invalidate the savefile, so bumping or running out of battery doesn't kill your progress.

For the software side of things, I decided to go with the decompilation of Pokémon Pinball, so I could edit a few things, like having all the pre-set high scores say "JAY" if no player scores were recorded, and I added my name to the splash screen before the titlescreen.

I also added +Rumble! to the titlescreen as well, to really highlight it as a showcase feature. I also added a custom SGB border that's just pure black with "Jayro Presents:" that fades in, then out before loading the default border. (Tested on actual hardware too.)

So to me, this was a really fun project to work in in my free time, and I'm excited to finally show it off.

Sadly, Pokemon Pinball Generations v1.5 isn't holding a save and will need investigated further, as it is also decompiled with source code.