The Grapple Grounder is very fast, springy, and dangerous Boulder Class dragon. It is snake-like in appearance, with four long skinny legs and a long body. The Grounder is ready to fight any dragon it meets, and it seems that this dragon shoots pulse blasts similar to those of a Night Fury.
The Grapple Grounder appears in the last battle in the game. Snotlout uses four Grapple Grounders in the Thor's Day Thursday Tournament. Beating the last tournament, you unlock the Grapple Grounder in arcade mode, and become a Dragon Master, thus beating the whole game. Their main power is their body size. Although it can't dish out fast attacks in a short time, its magnificent speed takes from one attack to another quickly. It has more stamina and strength than Night Furies, but less speed, power, and fire. The golden dragon statue seen impaled by a sword above the Viking fire pit in the Great Hall greatly resembles a Grapple Grounder. Other than that and the video game, this dragon has made very few appearances in the franchise. The Grapple Grounder also appears in the DSI version of the game.
The Grapple Grounder reappeared in Rise of Berk where it was revealed to be a Boulder Class dragon.
According to Rise of Berk, this dragon is the undisputed wrestling champion of the Boulder Class. It coils itself around its victims and squeezes until they beg for mercy (but they never receive it!).
- The Grapple Grounder's head and neck seems to resemble a Zippleback's and Scauldron's, if you look closely.
- Its appearance is very similar to dragons of several exotic or eastern lore, particularly the Yinglong, a powerful dragon from Chinese myth, being similar to the Fireworm Queen and the Hackatoo.
- The Grapple Grounder may have been inspired by Korean Lung Dragons who squeeze their prey to death and have long, snake-like bodies with four legs and four toes