grappling hook

[the man]

Originally Posted by big1boom

The hook may also become a traction device once it hits the ground. Metal on the ground is illegal per <R08>

What if its covered in a rubber coating?

[big1boom]

Originally Posted by the man

What if its covered in a rubber coating?

<R05> Exterior or exposed surfaces on the ROBOT shall not present undue hazards to the team members, event staff or GAME PIECES. Reasonable efforts must be taken to remove, mitigate, or shield any sharp edges, pinch points, entanglement hazards, projectiles, extreme visual/audio emitters, etc. from the exterior of the ROBOT. All points and corners that would be commonly expected to contact a Game Piece should have a minimum radius of 0.125 inches to avoid becoming a snag/puncture hazard. All edges that would be commonly expected to contact a Game Piece should have a minimum radius of 0.030 inches. All of these potential hazards will be carefully inspected.

It would appear based on <R05> that any projectile would be illegal, however I would recommend asking Q&A to clarify.