Successfully complete a mission to unlock the following three new modes for that mission when it is replayed:
- Intuition mode: Removes the HUD.
- Merciless mode: Enemies are stronger.
- No Return: Backtracking does not restore steam.
Successfully complete Story mode to unlock the "A.B.E. Gauntlet", "Comic Theatre", and "Music Player" options.Stovepipe
Collect 100,000 medals to unlock the Stovepipe.