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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Gotham Knights Free the Scientists Robin Versus Many Regulators

How to switch characters in Gotham Knights

Gotham Knights Free the Scientists Robin Versus Many Regulators

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