Not to be confused with Crackout, a NES Breakout-style video game, Krakout is an arcade/puzzle game that was released for the ZX Spectrum, Amstrad CPC, BBC Micro, Commodore 64 and MSX platforms in 1987.
One of the wave of enhanced Breakout variants to emerge in the wake of Arkanoid, its key distinctions are that gameplay is horizontal in layout, and that it allows the player to select the acceleration characteristics of the bat before playing. It was written by Andy Green and Rob Toone and published by Gremlin Graphics. The music was composed by Ben Daglish.
Source: Wikipedia, "Krakout", available under the CC-BY-SA License.
Andy Green: program
Rob Toone: program
Ben Daglish: Music (C64)