Complex sentence: After the independently produced "Marauder" for the C64, Barry Joined Catalyst Coders in Portsmouth, and moved onto Imagitec Design and then Ocean software, during those years he wrote the music for many iconic 8-bit games.
Split into simpler sentences: After the independently produced "Marauder" for the C64, Barry Joined Catalyst Coders in Portsmouth, and moved onto Imagitec Design and then Ocean software. During those years he wrote the music for many iconic 8-bit games.