I'm going down a nostalgic path. Mario 64 is a fantastic game and always will be.
After the pink Bob-Omb finished teasing Mario with it's large feet, Mario proceeded as best he could at his shrunken size to the next part of the battlefield. Unfortunately for him a giant Chain Chomp was waiting for him. Repeatedly lunging at Mario trying to eat him. Mario didn't want to find out what the inside of a metallic sentient ball creature with a massive mouth and very sharp teeth looked like and was nearly eaten, but thankfully the chains weren't too long. He was able to get away. Onward to King Bob-Omb.
Also playing as a Chain Chomp in that Mario Tennis game for the Switch is hilarious.
