Oh great, it's
this theory again. This theory make me want to punch Phiones in the face.
When you say he went to Pokemon Tower to catch a Cubone, it is pretty unlikely. Think about it, who would go to a tpwer to catch a Cubone??
I mean, no one new that the ghost was Marowak except for Red and Mr. Fugi, maybe Team Rocket too.
...what does that have to do with anything? You can fight trainers with Cubone before you get to the tower. Now check your Pokedex- where are they shown being? In the tower. He wants to grab one, he goes there, decides he wants the evolved form, but oh wait, Team Rocket killed it so he can't find it (not that he knows why).
Look, I'm going to summarize every bit of info that disproves this theory:
* Raticate has never been very good. By the time you get to Lavender it's long been outclassed, and it's the GHOST tower. Why would a NORMAL type Pokemon be used there? (and don't give me this "why didn't he have it in the remakes?" lip, you know full well they don't change parties in the remakes until they get to original content).
* There's literally no indication of it before or after. He doesn't say anything about it on the S.S. Anne. Nothing is said about it in your fights at Silph, the route west of Viridian, or in the Champion's room.
* Your rival only cares about having the best, strongest Pokemon on his team. Raticate, as mentioned, is not very good at that point. He also mentions having 40 or so Pokemon in his dex on the boat, so clearly he has plenty of catches that he never uses. He can easily put stuff in the box that he doesn't like or has outlasted its usefulness, as he does other times throughout the games.
* The rival is a jerk. He doesn't
care about Pokemon like that. Oak says that after you beat him at Indigo Plateau. He says he was looking for Pokemon, and he may well have been waiting for grieving trainers to beat on. That sounds far more in his character.
*
They outright say Team Rocket murdered the mother Marowak. If they say that, they would say his Raticate died. Guess what they never say.
So can we put this to rest already? The only reason it keeps getting spread is because of people who want to try to make other players feel bad. And the "Cubone is Kangaskhan's baby" theory is just grasping at straws.
Yes, I'm kind of frustrated, but I am sick of people trying to spread this long-debunked story as canon.