JELLY! is a box of card games that features 7 different games to play with the included cards. Specifically, the box comes with 64 cards, 63 of which feature a solid color and one is rainbow colored. The games last from 10 to 45 minutes with play counts from 2 to 6. Mechanically, there is a climbing game, a real-time game, a bluffing game, a memory game, a poker game, a commodity speculation game, and a push your luck game. The box is published by Jelly Jelly Games, related to the chain of Japanese board game cafes, Jelly Jelly Cafe.