  In 1007.2982 a novel system of equations which propagate in one null and four
space directions were obtained as the on-shell conditions for the
six-dimensional (2,0) superalgebra. In this paper we show how this system
reduces to one-dimensional motion on instanton moduli space. Quantization leads
to the previous light-cone proposal of the (2,0) theory, generalized to include
a potential that arises on the Coulomb branch as well as couplings to
background gauge and self-dual two-form fields.
