TIL that during his development, Nintendo almost made Waluigi an evil version of Princess Peach named "Warupichi," but he ultimately became the evil Luigi because Wario needed a doubles partner in Mario Tennis for the Nintendo 64

https://refactoid.com/6-nefarious-waluigi-facts/

https://www.reddit.com/r/todayilearned/comments/152jo6x/til_that_during_his_development_nintendo_almost/