User blog comment:Brokenhearted15/Sonic Boom/@comment-25389239-20140905225903/@comment-477304-20140905235035

No, Nintendo in no way own Sega and there's nothing to prove that they contributed to Lost World barring Nintendo-related DLC.

I think you're getting mixed up, Sega and Nintendo entered in a worldwide partnership to release three Sonic games for Nintendo console, but that does not mean that Nintendo own Sega.