A.R.M.

The Appendage Replacement Mechanism (A.R.M.) is an invention created by Snake, host of EFAR.

The A.R.M. was made as a prize for the first contestant who got out of the underground maze, that contestant being Basket. When attached to someone, it behaves as how an arm usually functions and can serve as a useful asset for those who don't have arms/limbs. However, even though the A.R.M. works like a real one, it's only a prototype, so some of it's functions may not work the way they should.

In the third chapter, Snake gives Basket a newer version of the A.R.M., which includes robotic legs.