One version is common, at least one other version is rare
 CREDITS Game created & designed by Ron Gilbert. Amiga conversion by Tami Borowick. SCUMM(TM) story system by Ron Gilbert, Aric Wilmunder, Brad P. Taylor and Vince Lee. SCUMM(TM) system Amiga conversion by Vince Lee and Mark Haigh-Hutchinson. Original background graphics by Peter Chan, Steve Purcell, Sean Turner and James Dollar. Original animation by Sean Turner, Larry Ahern, Mike McLaughin, Steve Purcell, Ken Macklin, Collette Michaud and Peter Chan. Amiga art conversion by Larry Ahern and Brad P. Taylor. iMUSE(TM) music system by Michael Z. Land and Peter McConnell. Original music by Michael Z. Land, Peter McConnell and Clint Bajakian. Original arrangements by J. Anthony White and Robin Goldstein. Amiga music re-orchestrations by Robin Goldstein.  Game was distributed by Ubi Soft in France and by Ozi Soft in Australia.