I would keep those untampered with , or sell them as if if you dont need it.kyukyoko 2 cart and a box
Did all JP games have seals on the bottom? For some reason my JP Bubble Symphony didn't and there's no residue at all while my Arkanoid Returns does. The PCB for bubble symphony also looks legitimate.Please do not break the seals on official working carts just to re purpose the case. Especially not on something like kyukyoko 2 which is a bit harder to find than say Puzzle Bobble.
Some do some don't have the seal, I had a bunch of Asian boards and 2 out of 5 where bootlegs or modded to another game with the seal on it.Did all JP games have seals on the bottom? For some reason my JP Bubble Symphony didn't and there's no residue at all while my Arkanoid Returns does. The PCB for bubble symphony also looks legitimate.Some doPlease do not break the seals on official working carts just to re purpose the case. Especially not on something like kyukyoko 2 which is a bit harder to find than say Puzzle Bobble.