You and other ten characters spawned in a random room.

Randy: "Huh? I was with Howard a second ago-"

PInkie Pie: "Ooooh new friends!! Hi!"

Wilt: Holding a basketball.

Wander: Looking around.

Gumball: "... I'm not surprised anymore."

Penn Zero: "Who are y'all??"

Samurai Jack: "Name's Jack."

Buttercup: "Buttercup."

Sonic: "I'm Sonic!"

K.O: "... Why is no one questioning how we got here??"