держатель TZXvault`a однажды ответил.
Missing levels 5-7.
"OK, I've redumped the tape from the original and play tested it to the end of level 4... The game does indeed ask for level 5 data... However, the tape I've dumped is correct and the same as the current .tzx file...
So I can only assume that there was a mastering error when the tape was duplicated and that the levels are missing from the original tape... There must be a revision 2 of the game with the extra levels intact...."-Steve.