Board Thread:General Discussion/@comment-24074103-20131204160455/@comment-679780-20131208203008

You're not getting it, the firey red energy fields could simply be video game special effects.

And also the punch attack is his most standard attack, his fury simply derives from his opponents or desire to win, but with enough training, anyone can pull a perfect punch.

As for his most advance attacks, these abilities come at a much later time in the game when you have "advance" and by that time Knuckles needs to be more into the battle to use them, whenever it is his passion or fury of the fight that it is burning.