Could you plunger up the alarming creatures?
We think this has something to do with mythical creatures and dinosaurs fighting. Max frequently talks about “using defense” while holding his thumbs out with closed fists. The thumbs are a reference to Iguanodon, an ornithopod with prominent spikes for thumbs.
He is also very interested in the result of fights between various monsters, such as the Minotaur vs the Wolfman. We suppose it is just his version of fantasy baseball or the Marvel hero vs the D.C. hero.