Abilities and Skills
Snotlout is actually a very competent fighter, so his bragging is not entirely baseless.
Strength: Snotlout can lift heavy objects, like sheep, over his shoulder and run with it, he was also able to pin down Hookfang's horns to the ground. He has also been defeating several enemies.
Endurance and Stamina: Snotlout's stamina and endurance has proven to be high, seeing how he performed in the Thawfest games by taking a hit in the face of rock, or was bitten multiple times by his Terror in Worst in Show, but still came out fine.
Acrobatics: He has great balance standing on Hookfang's neck with no problems. Snotlout also has good reflexes, being able to dodge the attacks of enemies and was the only one who could hold his balance on a running log during the Thawfest games. Astrid, however, could have beat him, if it wasn't for Fishlegs.
Dragon Training and Riding: Despite being part of the Academy, Snotlout is probably the worst Dragon Trainer of them all, though the Twins may be worse. He managed to train the stubborn and aggressive Hookfang in the film, though Hiccup did the most of the work, if not all. Hookfang has been shown to often tease and disobey Snotlout. And the Terrible Terror he trained in Worst in Show, constantly bit him. Despite this, he did found out you can calm down Monstrous Nightmares by pinning their horns to the ground, showing he isn't entirely bad at Dragon Training.
Teaching: When Snotlout had become convinced he was going to die, he planned to recruit Gustav, so he could be his successor. Thanks to Snotlout, Gustav bonded with his own dragon, a Monstrous Nightmare named Fanghook. Snotlout encouraged Gustav in the battle with Dagur and his soldiers, causing their mission to succeed. This shows that Snotlout can be a good teacher, though in own 'special' way.
