Guts of steel. "Otacon, you jerkface! You interrupted the best part! Zero Suit Link was about to get the last Crystal Star and open the Fountain of Dreams, only to reveal Giovanni, who was behind the plot to get both Champion's Belts!"
Blue, AA (his Electrode), and multiple MOTHER 3 characters make their debuts! Plenty of characters start out that way. "I don't give X enough panel time. Background you goes!" Except Waluigi, the king of background characters.
I wonder if Toad minds that a laser signature is sitting in his lap. Brrzt.
Edit: There's a lot of detail that the chairs obscure. I'll let you see the individual drawings of everyone later--it's all one image, including stuff in the next comic, so yeah