Battles are designed to feel like you're in a sword fight. This isn't like most action games where you just run in, swing your sword wildly, and vanquish your foes with ease. Attacks are handled by swiping your finger across the screen in any direction and for any length. Infinity Blade detects it all and instantly translates it into combat moves. String a flurry of strikes together for effective combos. As you play through Infinity Blade multiple times (20-30 minutes per Bloodline), enemies get tougher. Soon enough, defense is the only way to survive.
Tap anywhere on the left or right third of the screen to dodge in that direction. Dodging is tough -- you have to really nail the timing. Blocking with your shield is handled by tapping anywhere on the center section of the screen. This is the easiest way to defend, but each block weakens your shield until it reaches its breaking point. Parrying might be the toughest of all, but the most satisfying. You must quickly judge the direction of your opponent's attack and strike in the opposite direction. Timing is critical. The deeper you get into Infinity Blade, the more you'll be forced to mix up your defensive moves parrying, dodging, and blocking in varying orders to counter different attacks.