Right after playing Z-Lock for a bit it get's an offical thumbs up from me. It's kinda like a giant shmup like game of chicken were the player get's powered up by being in the crosshairs of the enemy. The more enemies that are locked on to you the more points you get for killing the enemies (at the same time since the shot spreads more as well when powered up) and the easier it becomes but bewarned they don't take long when they have locked on to you to fire back!