The Vector Cannon is a vital weapon that appears in The 2nd Runner; much of the early storyline itself revolves around obtaining the cannon. The Vector Cannon is immensely powerful, and is also the only weapon capable of penetrating otherwise impenetrable shields of compressed space, like the one used on Aumaan. However, the cannon has a long charging period before the beam itself can be fired, which makes it unsuitable for regular combat situations. However, once fired, it unleashes an impressive torrent of compressed space that can be whipped about when turning, similar to Halberd and can be used to blast through obstructions leading to secret areas. The immense recoil of the cannon also requires that the user's mech be on the ground, in order to be tethered to it to counter recoil.

Bounder · Comet · Decoy · Floating Mine · Gauntlet · Geyser · Halberd · Homing Missile · Javelin · Mummy · Phalanx · Sniper · Vector Cannon · Wisp · Zero Shift