You can select up to two characters for the battle in ONE PIECE Bounty Rush. Before the battle begins, you can select one of these characters. You will be able to use the second character when the enemy knocks off you(In the second spawn). In addition to these two party characters, you can add support characters to increase the stats of party members.
To win the battle, your team must capture the treasures(more than the enemy team) in due time. You can win the match before the due time if your team dominates on all the treasure points for a few seconds.
Tap the enemy to target it and then use basic attack or skills.
You will often see the power-ups on the battlefield; power snacks, recovery meat, and speed juice. Grab them to get a temporary boost. Power Snacks – Increases your power. Speed Juice – Increases speed. Recovery Meat – Recovers HP.
Always keep in mind that it is not a fighting game. It does not matter how many enemies you killed. Only the treasure matters! So always focus on capturing treasures rather than taking fights. It only consumes time.
After the battle, you will get rewards(depends on the number of treasures captured by your team), league points. These points will rank up you to the high leagues. You start from D- league. As you rank up, the rewards you get from league battles will increase.
So the rewards get better as you progress to high-rank leagues.