Helix iOS
Helix is all about quick thinking and fast responses within a confined space. Your little craft is fragile and unarmed, but it can eradicate enemies by encircling them. Deft finger work is required to survive even a few waves, and things only get tougher when foes appear that forces you to encircle them in a particular direction.
Helix cost $2.99 on the iTunes Store. Head over there now and download Helix on your iOS device.
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Source: iTunes Store