| Unlockable: | How to Unlock: |
| Alternate Costumes | Successfully complete the game to unlock the Caped Crusader, Dark Knight, and World's Greatest Detective costumes. |
| Batmobile Missions | Successfully complete the Batmobile level to unlock the time attack and extra missions under the bonus option |
| Movies | After completing certain levels, movies become unlocked. This includes movie footage and interviews. |
| Unlock 2 Batmobile missions | Beat the game once. |
| Unlock all Movies and Interviews | Beat the game once. |
| Unlock Caped Crusader Suit | Complete the game on any difficulty |
| Unlock Dark Knight Suit | Complete the game on any difficulty. |
| Unlock everything in Gallery of Fear | Beat the game once. |
| Unlock World's Greatest Detective Suit | Complete the game on any difficulty |