How do you get Kimeramon?

Answer 1

If you mean by in the game Digimon World 2, then he can be obtainable and he is the strongest digimon to obtain in that game but your chances of seeing him is bleak to none.

You can see/capture him on Tera Domain on the 99th floor and you have a 1 in 666 chance of even seeing him on that floor.

So far no one on record has obtained or seen him fairly in the game. People use GameShark, emulator's or other forms of cheat devices to obtain him.