Game concept/design by Taito America. Coding by Chris Chirogene, Rick Ross, Joe Sleator and Eric Reinhart. Graphics by Torben Larsen, Rick Ross and Bob Hires.
 The US version contains an additional 33 levels not included in the first original release.
Last known releases:
- V1.04 (28-Feb-88) [European (PAL) release]
- V1.05 (31-Mar-88) [US (NTSC) release; exists in both NDOS and AmigaDOS versions]