Naruto: Clash of Ninja 2

Use down x two times wait until ur bar is full and use ur special

Sparingly attack Gaara with Quick attacks that don't leave you completely open but make sure to damage him as much as you can without having more than 60% of your health taken away and make sure to defend almost all the time. once your Chakra Gauge is full press *Down X* 2 times to go into your gate release form.. in this form you should be gaining chakra at a maddening pace but also at the cost of constant health lost. once your chakra gauge becomes full Press X to use your special and that should Kill / SEVERELY dmg Gaara. if he gets up before your chakra gauge becomes full, start jumping to avoid some attacks. thats the best i can think of, and always remember to lower the difficulty if its not already lowered!