BUR #30696 has been approved by @nonamethanks.
create alias hammer_brothers -> hammer_bro
Their name is officially "Hammer Bro":
https://www.nintendo.com/my/switch/aaac/sp/action/img/action_capture09_info.png
https://x.com/mariokarttourEN/status/1242702970300448768
https://www.smashbros.com/wii/en_us/items/assist/assist01.html
Gameplay footage with name:
https://youtu.be/-jdBG7GQJ_Y?si=XClmvn8UBokfWuj0&t=25
https://youtu.be/-x0danStgp8?si=tQ7hRT9FKBcExyDQ&t=42
The "hammer_brothers" tag also implies multiple instances of a Hammer Bro appear in an image, which is not always the case. The official plural name for them is "Hammer Bros." anyways.
https://mario.wiki.gallery/images/3/3f/HammerBrosSponsorMKAGP2.png
