Spongebob Squarepants was trying to stay on the stage themed after him as he was summoned on a custom stage by various Smashers, with 8 of them fighting each other as the yellow sponge was confused as to why he was present.
"Um... is this a prank?" Spongebob questioned as he rubbed the back of his head, feeling genuinely confused as he had his spatula in his hand as he was doing some cooking earlier.
"Does it look like 1?" Bowser Junior called out while chucking Mechakoopas from his junior clown car, being zapped by Pichu from behind.
"Gotcha!" Pichu teased Bowser Jr. as she zapped herself in the process, groaning as she was feeling dizzy.
Spongebob screamed as he pulled out his bubble blower, blowing bubbles at all of the fighters as he had to take some time to realize that he was on a stage themed after him.