|Behind the scenes information|
He is in all all three games however after the first game he takes a background role with minor involvment
Throughout the series Julius invented such things as as Power Bunyips, the Techno Rangs, and the Talisman Machine. In the first game he would make Ty new rangs in exchange Golden Cogs he also built the talisman machine which needed 17 thunder eggs to get it to work and teleport you to the location of a talisman where it'd be in the hands of a boss you'd have to battle.
In Ty 3, he had been kidnapped by his Uncle Karlos and was forced to work for him. Ty had to rescue him so he could use his technological prowess to fight the Quinkan Invasion. Julius didn't seem to mind working for his Uncle and even mentioned visting him at Christmas.
In Ty 2 or 3, if the overworld lags for a moment, he will pop up with a random fact to tide the player over while the world map finishes loading.
In Ty 3: Night of the quinkan, he only appears in the intro and while he is rescued.As for the rest of the game, he is absent.