Shura no Mon/Kimura

Since Kimura is the first opponent, he'll be quite easy to beat, and even easier if you know exactly how to fight in the game. Otherwise, Kimura lets you get acquainted with the battle system to give you an easier time with later opponents. His HP also goes down very fast. After one minor attack, you'll be about a quarter of the way there. Being the leader of his infamous martial arts posse, he thinks he's the toughest in the place and will bring on his A-game of moves.

Offense and Defense
Your best bet to winning the fight is staying on the offense. Do this by chaining together attacks and letting them hit, whether it's blocked or not. You shouldn't worry too much when Kimura throws his attacks after you. They don't do much damage and turn out to be very weak. Still, if you want to get used to both attacking and blocking, defense practice is recommended.

Offense
Attacking is quite simple. First, open up the moves menu. You'll see a short list of available moves for now. Choose one and a sub-menu will come up. Select a move from the sub-menu and you will attack. Depending on whether Kimura was ready or not, he may or may not defend it. Still, Kimura's defense isn't very effective. Even if he does block it, he will take a considerable amount of damage as well.

Defense
Any time Kimura attacks you, you can be sure not much damage will be done. When his HP is almost all gone, he'll do a little power-up, only making him a little stronger and getting back a little of his health. Otherwise, his moves will be nothing to worry about. Defend simply by selecting the choice on the list. Although his moves aren't much of a threat, you should still try practice defending. The game gets serious after this fight, and you won't have another chance to get a grip on the defense mechanics and timing. If you've already gotten the hang of the game, don't bother defending and work on getting your next attack ready.