Nickelodeon Gak Twist is all Twisted! Gak Twists each come in a different color combination. Once you pick Gak up, you won't want to put it down! Gak's awesome Twist container lets you see the twisted Gak colors. Gak make all sorts of WACKY sounds when you squish the Gak around. Hold it, roll it, bubble it, stretch it?you've got the knack for GAK!