I simply love this game, and decided to do a guide. This is not everything, i don't tell you where the vitalit glyphs are, swim about, you'll find them.
Apologies for the levels missing. It was a long time ago i played it and had no access to a PC.
Try www.gamefaqs.com for further guides
Trial without error- part II, Up and Down – Part I,Passage from genesis
Up and Down – Part II, pathways from nowhere, Up and Down – Part III