So pretty much, you decided to steal from someone cause why not? You got chased away, and later got knocked out by someone.

You'd then suddenly wake up on the ground inside of a huge colosseum-arena, dizzy as you looked around, hundreds of seats that Stickfigures are sitting on would be seen around as they'd be cheering for someone... Then, you're gaze would turn to a Yellow Stickfigure standing in the middle of the Arena, looking at you menacingly, without mercy.

"Well, well.. if it isn't my dearest enemy in this arena..."

He'd say seriously, before adding on.

"However i have no time for you, as stronger challengers await, so let's get you done quickly shall we?"

He'd finish, getting in a fighting stance with a calm, confident, skillful and calculating attitude, ready to calculate any of you're moves.