To defeat the machine in the north pole that appears after katara is taken by the fire guys, use sokkas boomerang (b) to hit its arms. It will flash white when you can attack it. Use aangs air strike (b) quickly to attack. Do this for a while until its health bar is 0. Also, use the air strike to block fireballs. [by: GUEST]
If there is an enemy that keeps on attacking you before you can counter, use aangs air blast (a) or kataras water whip (b). Not only do they do damage, but most of the time they will confuse the enemy if its a person. [by: GUEST]
I need help deafeating the machine you face after sokka and katara are taken [by: Guest]