Sonic

Sonic The Hedgehog
"'Aww, I lost...' -Sonic, when Mario beat him in RPS"

All Of The Clues Are Coming Together
Coiny decided to pick him along with Tails, Gumball, and Plankton, because Coiny, didn't feel like choosing Squidward or Cody.

How Long Can You Stay Up There?
Sonic was safe, and gets to be covered in evaporated limeade, and is seen as a background character.

All Around Me Are Familiar Craters
Mario and Sonic were playing RPS, but Sonic lost, and kinda walked away. Sonic sits there while kwysocki243 was explaining the 5th contest.

Rock, Paper, Scissors, WALUIGI!!!
Sonic was chatting with Spongebob and Mario. Cuphead showed up. Cuphead was asking if Waluigi is saying the votes backwards, Sonic said yes, and Cuphead leaves.

Why You Should Never Bring Up A Bombfight
When Parappa said Tails had it coming, Sonic gets mad because Tails was his friend.

Guess Who's Back?
Sonic dropped a green pile of gum.