2 Bad Mice formed in England in 1991, and was comprised of Sean O'Keeffe, Simon Colebrooke, & Rob Playford, also owner of Moving Shadow records. 2 Bad Mice was widely credited as among the first UK hardcore acts to begin heavily incorporating breakbeats into their style. They were a staple on the early to mid-90s hardcore scene, and were instrumental in the music's steady mutation into jungle/drum'n'bass.
The group's influential approach to sampled beats, cutting them up into shards of rhythm and rearranging them in novel combinations (first appearing in mature form on the 1992 hit "Bombscare"), is generally considered the blueprint from which jungle's characteristic manipulation of breaks was assembled. Although 2 Bad Mice for the most part stopped producing as the hardcore scene began to wane, a best-of compilation of the group's work appeared on the American Sm:)e Communications label in 1995. Playford continues to record as under the alias Timecode, while O'Keeffe records under the name Deep Blue and as a member of Black Rain.