Backpacky is an S-grade Pet. It burps out a large wave of Jellies and Power Jellies at certain intervals. The wave may destroy obstacles.
However, it is not a good Pet for scoring points, as the Jellies it produces are not worth many points (being regular Jellies such as Bear Jellies or Alphabet Jellies), and are burped in a fan shape spanning the whole screen, such that the player is unable to collect all the Jellies without a strong Magnetic Aura. Worst of all, the Pet only has one combi bonus with its combo cookie, Adventurer Cookie, who is mainly used to collect Mystery Boxes - a task in which Backpacky would be no aid to.
At given intervals, flies forward and turns upside down to destroy obstacles and provide Adventure Supplies, such as Choco Bar Jellies (including __), Heat Pack Jellies (including Magnet Jellies) and Drink Jellies (including small Potions). Level Up for more frequent skill activation.