How to free the scientists from STAR Labs in Gotham Knights

To free the scientists from STAR Labs in Gotham Knights and survive the Regulator attack, you need to operate the Railgun at the same time to thwart Mr Freeze.

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ArtStation - Gotham Knights Level Art: Star Labs

Heist at S.T.A.R. Labs, Mr. Freeze Side Quest Puzzle

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The Heist at STAR Labs in Gotham Knights Guide

The Heist at STAR Labs in Gotham Knights Guide

Every Villain In Gotham Knights