Cartridge data wiped

[Thirdkoopa]

I just remembered this with a select few games like my copy of Smash 64, so I have to ask you all, how many times have you had your cartridge data completely wiped from you? And which system have you had it more? Or have you never had it happen to you and I'm just unlucky/lazy/etc?

[The Riddler]

My original copy of Final Fantasy II for SNES had been erasing itself as long as I can remember.
;____________;

[MoS]

I ruined one of my copies of OoT by doing crooked cartridge too much.I literally wiped the entire game, not just a save lol.