During a drawing tutorial for Grunkle Stan, the animator (Alan Ruck), accidentally unleashes Bill Cipher onto his animation desk. Watch the next How Not To Draw video here: https://youtu.be/42DBCwvlxtg?si=vFlsaF2q1jZZLR3H Watch How NOT To Draw on Disney Channel! And watch more videos here: https://youtube.com/playlist?list=PLiv1IUQDVSNKSwiTLE-l6pwhnu75gRIfH In How NOT To Draw, a drawing tutorial parody series, animators bring beloved Disney characters to life, and the characters bring…CHAOS! How Not To Draw Available on Disney Channel and Disney+ https://ondisneyplus.disney.com/show/how-not-to-draw Gravity Falls Full Episodes Available on Disney+ https://ondisneyplus.disney.com/show/gravity-falls #hownottodraw #gravityfalls #disneychannel