RiftTank

In RiftTank, you control a tank at the bottom of the screen. Swipe to draw rifts that last 5 seconds and pull nearby enemies in for elimination. Tap to fire straight shells that pass through rifts and exit from the far end to hit blind spots. Tap an existing rift to detonate a spacetime warp, clearing nearby foes for +5 bonus points. Adjacent rifts merge into larger ones with double pull range and +5 seconds duration. Use rift teleport twice per round to instantly move your tank between rifts. Start with 3 rifts, regain charges by killing enemies, and score as many points as you can within the 90-second limit.