Johann, being the Emperor of Humankind, has had a lot of advantages mutated into his own body. One of those, of course, would be poison resistance. The RED Labs (Research, Evolution, Development Laboratories) back in Condenia reverse-engineered the resistance in Johann's body for poison to not be able to kill him. The side effect of that, however, would be that whenever a poison is too strong, it gives him psychedelic effects. Considering this and the bite of the iridium serpent, by the time that Lynae was finally able to hold her hand out to help Johann, the Emperor was already tripping balls.
Instead of laying dead, or at least paralyzed on the ground, Johann is actually moving his body randomly as if he was dancing and, as if it wasn't enough, instead of using the Universal Common/English, he was actually singing in German/Condenian. Of course, that entire situation must be extremely weird for the huntress -- At first, a human appears and falls onto her trap, then he holds out a weapon that is completely strange-looking and then, after being bitten by the snake, he is literally DANCING AND SINGING on the ground.
"NEVER GONNA GIVE YOU UP, NEVER GONNA LET YOU DOWN!" He sang in the Condenian language, then taking the hand of Lynae and getting up, then pulling her closer and trying to dance with her. "You are so beautiful, my young girl." He whispered, giggling and then starting to dance alone.
In his vision, everything was extremely happy -- Even the bushes and the trees were dancing, and that's not even to mention the pink elephants he was able to see passing by while dancing as well. If someone would have been able to see what he sees currently, they would most likely compare it to a trippy old cartoon where everything seems happy enough to be dancing.
(edited)