The Colosseum is a series of stages exclusive to Shovel Knight Showdown. It consists on three stages: Morningstar Arena, Triad Hill, and Percy's Targets.
A location up until now only seen inside the illusory world of the Mirror of Fate, in Story Mode, all characters wake up inside the Colosseum and start their quests from there. Thus, the first stage of Story Mode is always Morningstar Arena or Triad Hill.
Percy's Targets can be accessed by two ways:
- In Story Mode, where fifth stage is always Percy's Targets and player has a goal of gaining a specific amount of points, depending on the selected difficulty.
- On the title screen of Showdown. This version of Targets doesn't have a goal limit and its purpose is to find out how many points can player gain. By gaining 100000 points for the first time, a feat is unlocked and the stage named Explodatorium - Potion Drains is unlocked.