Also known as Raikou, Entei and Suicune's prototype designs for the Pokémon Gold Demo from 1997.

Wanted to have a go at designing them on what they might have looked like. Going by their sprites as best as I could. But seems them being known as dogs made a lot of sense looking at these older designs as compared to the newer ones.
Hope I did them some justice, though.

Also, am I the only one who thinks Rai's hair looks like a Super Saiyan type of hair? Goku anyone?