On 05/18/16, Roger Nelson said the following...
 
 RN> I forgot to mention that level 21 is in the TNT wad.  Sure, the
 RN> developers are fast, but that particular wad level is enormous. 

I'm not sure if I have seen level 21 or not. I haven't played a lot of TNT or
Plutonia. I'll have to look up the cheats and have a look.. :)

 Ttyl :-),
         Al

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