There are three different modes that you can play Dragon Ball Z: Infinite World in: mission, duel, and the Fighter's Road. Of course, the mission is basically the story mode of the game, and it takes you through both the Dragon Ball GT and Dragon Ball Z story lines (which is taking about a hundred different episodes from the show and condensing them down into this story line). During the mission mode, you will travel around until you get into a battle. If you don't like the outcome of a certain battle, you can always go back and reply it though, which is really nice.
The battles that you win will give you money, or Zeni, so that you can get the upgrades you need to fight the bosses. To do this, you'll visit the Warrior's Room shop and use the Zeni that you've earned to purchase what you want. Since the game gets harder, you'll want to make sure that you are upgrading your gear as much as you can so that you're prepared for boss fights. One part of this game that ruins your game play is that the boss strategies are really not that different. For example, you can basicall use the same strategy over and over and take down the bosses as you come to them. There is nothing different really that you can learn or practice to defeat a special boss.
As for the other modes, such as the Dragon Duel, you will have a bit more fun. This is the two-player mode of Dragon Ball Z: Infinite World, and you can either play with a friend or play against the computer. The good thing about this is that you can actually choose from over 40 different toons from the game, you aren't restricted to just one. You can also customize this toon with different power-ups from the Warrior's Room or you can just use the base stats that the game sets for them.
The last mode is the Fighter's Road, where you will fight against over 100 different foes - but you can only get to this mode after you have completed the mission mode. Good part about this mode? While you still guide one toon through the map, you can unlock new toons in the game and earn a ton of Zeni for yourself. So, for a secret level/mode after you've completed the first mode, it's pretty cool.
Overall, the game is all about combat and fighting the enemies in the show. You will find that you'll have a mass of different moves, attacks, and defenses for your toon, and you can buff these up in the Warrior's Room shop as well. You will learn quickly the different ways to defeat opponents, and to keep an eye on your fatigue meter, as letting this meter reach full will actually stun you. The fights are really fast though, so you do have to be on your toes or you can find yourself losing really quickly.
The overall game play is pretty hard, and you can easily find yourself losing even if you are on the ball though, so practice is the key here. And, what really isn't fair, is that the AI of the game will get harder as you go along. This makes the game almost too hard in some areas, and kids will get frustrated with this part of the game pretty quickly. You can set the game to different modes, such as "Very Easy" to help ease the difficulty a bit, which I would recommend at first. Now, the foes that you'll fight don't get easier, they are just the same as if you play in another mode. The main difference is that your health and the like will not deplete as fast and your Ki will recharge faster.
