Note: This is NOT a Cryptid. It is simply a genetically modified version of an identified species. However, Zak could still control him, although he can probably control all animals.
In the Show
Most any good meal will do.
Flashlight frogs: Komodo attempted to eat one in the first episode.
Firecracker beetles: Komodo attempted to eat one in the first episode.
Snake: Komodo ate Rani Naga's messenger snake in the Alas Pin and he also ate 4 or 5 snakes that attacked the Saturdays in Kur part 1.
Eggs: Just like modern komodo dragons, they eat eggs. Komodo wanted to eat the Popobawa eggs, but he was stopped by Fiskerton.
Oxen: Just like modern komodo dragons, Komodo may eat ox and bulls. In Something In The Water, the meat to lure the Grootslang could be part of an ox that Komodo was eating.
Flesh-eating Black Flies: Komodo ate a huge swarm in Van Rook's Apprentice. He doesn't seem to mind if they're highly venomous when he ate them.
Goats: In Curse of the Stolen Tiger, Komodo tried to eat one.
Jinshin-Mushi: Komodo tried to eat one in Kur Rising, but he wasn't able to swallow it.
Rats: In Escape From Weird World, Munya tried to feed Komodo rats.