>>2884
Quickly googled "Super Mario," "Catherine," "Doki Doki Panic." Found the quote I'd always seen before.
https://themushroomkingdom.net/birdo.shtml
>Manual profile: 「自分をメスと思いこんで口からタマゴなどをはくヤツ。キャシーと呼ぶときげんがいい。」 (Translation: "He thinks he is a girl and he spits eggs from his mouth. He'd rather be called 'Cathy.'") The Japanese word used here for "thinks" is omoikomu, which roughly means "wrongly believes."
I hate tranny shit, but I'm autistic for original video game manuals. They also ignore all the lore from Super Mario Bros. 1, but I don't.
This website also says the quote was unchanged in the Super Mario USA Japanese release, which was in 1992, and that this wasn't changed when Super Mario USA was released on Wii Virtual Console.
In 2001's Super Smash Bros. Melee Trophy description, the same information is reworded. slightly.
>自分を女の子だと『思いこんど』おり、゛キャシー゛と呼ばれるとごきげんになる。」 (Rough translation: "Catherine 'erroneously' thinks he's a girl and likes to be called 'Cathy.'")
2003, Double Dash
>Birdo's description on the Japanese website starts with 「ヨッシーの彼女に見えて実は彼氏!?」 (Rough translation: "[Catherine] appears to be Yoshi's girlfriend, but is actually his boyfriend!?")
2007, Itadaki Street DS
>Birdo's character profile in this Japan-only game says, 「自分のことを 女の子だと思っている 心はオトメなピンクのきょうりゅう。 クチから タマゴをはくのがとくぎ。 勝ち負けよりも たのしみたいので あまり高度なわざは つかわない。」 (Translation: "A pink dinosaur who's convinced he's a woman, and is a young maiden at heart. His specialty is shooting eggs from his mouth. He's more into enjoying himself than winning or losing, so he doesn't have any particularly highly-skilled moves."
2008, Brawl Trophy Description
>Japanese trophy description: 「自分を女の子と"思いこんで"いるピンく色の恐竜(?)。 "キャシー"と呼ばれるとご機嫌になる。大きく開いた口と、頭につけた赤いリボンがトレードマーク。 『スーパーマリオUSA』では、吐いて攻撃してくるタマゴにジャンプで乗ることができ、投げ返すことで攻撃できる。 たまに、タマゴではなく、たまに、タマゴではなく、火炎弾を吐くフェイントも使う。」 (Translation: "He's a pink dinosaur(?) who firmly believes he's a woman. He gets extremely happy when people call him 'Cathy.' His trademarks are his widely gaping open mouth and the red ribbon on his head. In 'Super Mario USA' you attack him by jumping on the eggs he shoots out of his mouth and throw them back at him. Although sometimes instead of an egg, he feints with a fireball.")
2008, Captain Rainbow
Already mentioned, but the "proof" that Birdo is female is censored and unseen. It's a joke. I'm fine with saying this isn't good evidence either way, but Brawl came out the same year and said the same as always, that Birdo is a tranny crossdressing mentally ill nutcase.
And as for the eggs, Birdo spits eggs from his mouth, not "her" cloaca. That's not evidence. If anything, it's a joke about how he can't really lay eggs. Now, I shouldn't be expecting Super Mario Bros. 2 on NES to have a boss that shoots eggs out of her pussy, but I'm just saying, the eggs aren't good evidence.