A lot of smoke from the guitar, and two shots of fireworks from the guitar. He talked to the audience, cracked a joke. I've seen KISS 18 times, and I like it every time. Gene seemed to be having a good time. I'm not sure what he was talking about.
Chances are, a pair.
A topic for an English discussion, somewhere, some other time. Maybe he was just having a good time. When he breathed fire, it was great. The red lights and sirens during Firehouse are dramatic, and then he breathes fire. When he spit blood, it was great.