The Vortex Turret is an upgrade.
Creates a turret next to the PC. The turret will attract anything. Attraction is so strong, that can pool Booka virus (Slowest enemy in the game, but btw :).
Turret haul: Turret can be hauled by drag-drop mechanic. While drag-drop, turret attract two times faster.
Cannon, Regular turret (LaserGun): Vortex turret can hold viruses until cannon kills them.
Backstabber, Deathly Boots: Also makes it easier.
Portals: You can teleport all viruses at once. And Turret also will be teleported
Wall Building: Having both upgrades is pointless
Starfall: Umm... I think, you shouldnt do it. p _ q