Time travellers with high-tech equipment? That's probably the most mood-destroying 'creature' ever published for M&M (or any other RPG for that matter)! My players would simply lynch me if I used this sort of thing in my campaign. If you want to mix swords and rayguns just play Encounter Critical. Please leave such sci-fi nonsense out of our beloved Bronze Age!
-Fan feedback sent to Griffin Magazine after the release of Hekatoteratos, the Mazes & Minotaurs monster book, collected with many other comments in the PDF reprints of 1st edition M&M materials.
35 minutes ago