Uploaded June 2026 | Updated September 2026, 2 weeks ago

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In this gameplay walkthrough of LEGO Batman: Legacy of the Dark Knight for IGN, we show you how to get through the Firefly section of Chapter Four.

00:00 - Intro
03:30 - Go to the Gotham Museum
04:35 - Million Dollar Masquerade Ball
06:05 - Open the security door
07:21 - Save the partygoers 1/3
08:06 - Save the partygoers 2/3
09:35 - Save the partygoers 3/3
11:56 - Investigate the banging doors
12:42 - Follow Firefly through the museum
14:51 - Save the partygoers
17:20 - Build a cannon
19:10 - Find a way to open the door
19:30 - Red Brick: Fire Breather
21:44 - Fuel the rocket 1/2
22:52 - Fuel the rocket 2/2
24:40- Outro

For more help on Lego Batman: Legacy of the Dark Knight, check out all of our guides at ign.com/wikis/lego-batman-legacy-of-the-dark-knight