While slower than Sonic, Knuckles is depicted as one of the series' strongest characters and a skilled martial artist: his brawny physique allows him to lift objects many times his size and weight, while his powerful fists enable him to smash through boulders. He can also glide long distances by trapping air under his dreadlocks, and can climb up walls using the spikes on his gloves. Unlike Sonic, Knuckles is able to swim. As is typical among Sonic characters, Knuckles can roll into a ball to attack enemies. He also has an empowered "super" form: using the Chaos Emeralds allows him to transform into Super Knuckles. Using the Super Emeralds allows him to transform into Hyper Knuckles.