You need a camera to play this game. You're represented by the character by the transparent green outline. Try to match his pose, from there you can move forward or backward. When you move forward, use your arms to punch Rumble McSkirmish. Game ends if you defeat Rumble (his health bar goes to zero) or he beats you! Enjoy!
This game is based on the amazing Gravity Falls Fight Fighters episodehttp://gravityfalls.wikia.com/wiki/Fight_Fighters Rumble's art comes from the original artist for this episode, Paul Robertson. http://probertson.tumblr.com/post/31637353328/gravity-falls-animations Some of the game sounds are from the Street Fighter games