From the Super Mario Wiki
In The Super Mario Bros. Super Show! episode "Too Hot to Handle", Scooter was the one who greeted Mario, Luigi, Toad and Princess Toadstool on behalf of the Aloha People when they arrived on Waki-Waki. After giving Princess Toadstool a grass lei, Scooter quickly ran away to find shelter when the volcano of Waki-Waki began to cause an earthquake, which Scooter believed to be caused by the Fire God of Waki-Waki.
Later, after hearing an announcement from the Fire God (in actuality, King Koopa disguising himself as the Fire God) saying that Princess Toadstool needed to be thrown into the volcano by sundown or else Waki-Waki would be destroyed, Scooter ordered the capture of Princess Toadstool. Even though Mario tried to tell him that it wasn't the Fire God who ordered Princess Toadstool's sacrifice, it was King Koopa, Scooter ignored him and had Mario, Luigi and Toad thrown into a pit while he and his friend Bingo took Princess Toadstool to the mouth of the volcano, with the intent of throwing her in it.
Eventually reaching the mouth of the volcano, Scooter and Bingo prepared to throw Princess Toadstool into it, only for Bingo to remember and subsequently remind Scooter that the Fire God had ordered them to throw Princess Toadstool into the volcano at sundown. Hearing Bingo, Scooter decided to simply wait until sundown to throw Princess Toadstool into the volcano, not wanting to disobey and anger the Fire God. Despite Mario, Luigi and Toad's, who had escaped the pit they were in, protests, Scooter and Bingo eventually did throw Princess Toadstool into the volcano, after being tricked into thinking it was an early sundown by an impatient King Koopa.
After King Koopa and Fryguy were defeated and their Lava Machine were destroyed, Mario, Luigi, Toad and Princess Toadstool revealed to Scooter and the rest of the Aloha People that they had been manipulated by King Koopa into doing his bidding. After tearfully apologizing to Mario, Luigi, Toad and Princess Toadstool, Scooter deciphered a smoke signal meant for them from the real Fire God, who said he was alright and wished to throw a celebratory spaghetti luau for Mario, Luigi, Toad and Princess Toadstool. Along with the rest of the Aloha People, Scooter was seen in attendance at this spaghetti luau.