The aim in Ninja Dojo Fight! is to prove you're the best Ninja by participating in unsanctioned battles. To help you win, you must break into the dojo and look for the best weapon you can find at the break of dawn. The game is made up of five rounds with each round consisting of three turns followed by a battle phase. Each turn has three phases:
- Select: Each player secretly chooses an action.
- Reveal: All players simultaneously reveal their chosen action.
- Resolve: Actions are resolved in ascending order.
After three turns, a battle occurs and a new round begins. The player to win the most battles after five rounds is declared the winner. In the event of a tie, the players tied play one additional round, called the showdown; whoever wins the showdown wins the game.