The Tall Idols are a type of Tiki Monster that are similar to the Short Idols, both of which only appeared in Spyro 2: Ripto's Rage!.
Two types of tall Idols exist:
Fat Idols holding a marshmallow on a stick and trying to hit a Green Colosi with it to scare him away.
Thin Idol holding a sausage on a stick and has taken a Green Colosi hostage, trying to hit anyone that gets near. They were later able to breathe fire.
In the original game, both fat and thin idols have a similar design. In the Reignited Trilogy, the fat idol resembles his original design, while the thin idol gets an entirely new look, and is more tall and thin. And their eyes are white orbs instead of being hollow holes.