Trouble is a board game similar to Pachisi in which players compete to be the first to send four pieces all the way around a board. Pieces are moved according to the roll of a dice|die. Trouble was developed by the Kohner Brothers and initially manufactured by Irwin Toy Ltd., later by Milton Bradley Company|Milton Bradley (now part of Hasbro).
Players can send opponents' pieces back to the start by landing on them. Pieces are protected from capture after arriving in the final few slots. Unlike more complex race games, however, counters cannot be maneuvered to block opponents' moves.
The most notable feature of Trouble is the "Pop-o-matic" dice container. This device is a clear plastic hemisphere containing the die, placed over a flexible sheet. Players roll the die by pressing down quickly on the bubble, which flexes the sheet and causes the die to tumble upon its rebound. The Pop-o-matic container produces a wikt:pop|popping sound when it is used, and prevents the die from being lost. The captive die allows for quick dice rolls, and players' turns can be performed in rapid succession. The die is imprinted with Arabic numerals rather than the traditional circular pips (though the circular pips are used in the Travel version, which contains a cover to keep the pegs from being lost).
If the dice in the "Pop-o-matic" dice container has not clearly landed on a number the party whose turn it is may either pop again or tap the Pop-o-matic" dice container until the dice has landed on a number.
A variant of the game was produced, entitled Double Trouble. It featured two boards attached to each other.
A similar game entitled Headache was produced by the Milton Bradley corporation, but never reached the same level of success as Trouble.