Is Metroid: The Other M Considered First-Party or Third-Party?

[Chrizum]

ZZetaAlec said:

Chrizum said:
The game, along with every Metroid Prime game, is second party, because it's not being made (entirely) by Nintendo but it is owned by Nintendo.

Definitely not third party.

The Prime games are first party, Retro is a first party Nintendo developer as Nintendo owns 100% of the company.

I don't think that's correct. Retro is owned by Nintendo, but Retro is not an in-house developer. That's called second party as far as I know.