Title: Boulder dash 2 classic collection Publisher: Triumph Game Labs Author: Transman intro gfx & music - riskej'simbols Year: 2009 include levels (40 levelsets total): original Boulder Dash 2 (Zx Spectrum) Boulder Dash N by RVS (Zx Spectrum) various Profi Boulder disks by Rockford (C64) hardware: zx spectrum 128 original (bd1) & space (bd3) tilesets Collection based on "boulder dash 2" engine original game (atari) - Piter Liepa with Chris Gray Zx Spectrum conversion - Dalali Software LTD. tied-in license: first star software additional info: key "J" - re-select levelset