Yup, you read that correctly. Nintendo is currently taking down a number of videos that include tool assisted speed runs and also rom-hacked video games. Previously the Kyoto based company said it would endorse things such as Let’s Plays, Game Music Covers, and Fan Art. However it would seem that tool assisted speed runs and rom-hacked games just aren’t accepted by Nintendo. The tool assisted speed run videos taken down from Nicovideo include:

Mario Kart Advance

Legend of Zelda : Majora’s Mask

Made In Wario

Doctor Mario

Super Smash Brothers Melee

Kirby Deluxe

Edited SMW

Thanks, Giddy64