Completionists and masochists will be glad to know there are two characters and a "Nightmare" level of difficulty to unlock. The game is relatively short - the five levels won't take more than three hours to play through on normal difficulty, especially if you're attentive to the patterns - but Rebirth isn't a game looking to provide an epic, mind-altering journey.
Its mission instead is to hearken back to a simpler time, when games were about mowing down unlimited waves of enemies with a constant stream of machine-gun fire, or somersaulting through the vacuum of space and into battle without a second thought to the realism involved.
B/A+
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