Since we discovered the naming convention behind SecretLevel Triggers some time ago, perhaps the download link for this .REZ file could be restored?
When there are actually additional Secret Levelz to be played, and someone can provide an updated Gruntz.REZ file, a working link will be created. I do not have a program to update the Gruntz.REZ file myself, since WinRezLite (and every other program I have managed to locate) is flagged by my firewall virus checker as containing a high risk Trojan ... and has been quarantined. There are 31 possible Secret Levelz ... every 'Standard' Quest contains a SecretLevelTrigger. I would recommend that candidate Questz for SL status be kept small ... 32 tilez wide by 24 tilez tall being the ideal size IMHO.
But as normal Questz, are these 7 maps perfectable without the use of cheats? If not, then their difficulty rating is very misleading.
IIRC, only "Fun For Your Feet" of the seven doesn't allow a "PERFECT!" score. And that is only because only one of two Clubz could be acquired. Perhaps the other six did not provide a Warpstone Piece, so the same may be true for them ... but they may have been altered when the naming convention thwarted us.