REQUIRES A HEART RATE MONITOR TO PLAY

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Get it now on Google Play (Early Access).

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Space Invaders meets Asteroids meets your best workout ever, all on your smart phone.

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The harder your work out, the more firepower you get to kill invading aliens before they destroy the planet...

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The most heart-pounding shoot-em-up you've ever played!

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Great for cardio, strength workouts and HiiT (hands-free mode).

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Time flies!  Who said working out has to be painful? Not us.