The Colosseum of Fools is an area where the player may participate in three trials in which they battle waves of enemies in an arena observed by a crowd of bugs and the corpse of Lord Fool. In order to unlock a trial, the player must pay a fixed sum of Geo that increases with the trial's difficulty, and defeat the previous trial.
Once the initial sum of Geo is paid to unlock the trial, the player can challenge the trial as many times as they want for free.
Enemies killed in the Trials do not drop Geo.
The Colosseum of fools is located at the very top of Kingdom's Edge. The player will ascend the main middle shaft of Kingdom's Edge, with a quick divergence to the right column; as platforms stop appearing midway through the main column (but only for a short distance). The player then returns to the main column and can continue ascending.
Trial of the Warrior
Trial of the Conqueror
Trial of the Fool
Requires 800 to unlock. Upon completing it for the first time, it rewards 2700, and the Fool achievement. Subsequent victories will also reward Geo.