How do I potty train a tamagotchi on?

I wanna potty train my tama before it’s too late 

You can't, frooties (awesome username, by the way XD). Potty training was a feature only present in the 4U and 4U+, which are only in Japanese.

Knighttchi's Ballad said:

You can't, frooties (awesome username, by the way XD). Potty training was a feature only present in the 4U and 4U+, which are only in Japanese.

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Ah, thank you! I heard somewhere that you could potty train the on lol

I’m sorry but I  shore you can potty train your tama on Australian ones I’m shore on most types any way to toilet train them if they have wiggly lines above their head and are shaking take then to the toilet on toilet option 

That's not potty training since potty training means that the tamagotchi goes to the bathroom completely on its own without needing the owner's involvement - in the same sense as potty training real life animals and kids. What you have described is simply preventing the tamagotchi in one instant from leaving a mess on the floor, which is indeed a standard feature - and usually rewarded with a happiness heart filling - but does not lead to the tamagotchi learning to go to the bathroom on its own.