creating an enemy/opponent

We don't normally refer to the attacker as an enemy. Ideally, if someone attacks us, we use technique to keep ourselves and them safe until they get tired, so we normally refer to that person as the opponent. In the world of gaming, the term "enemy" is common. In speaking to folks who are potentially going to help me build the game or even looking at C# coding and seeing the references to an enemy in the code, it's easier to make that reference. So I quickly drew another sketch and sent it off to the modeler who made this:

I wanted the player to be able to differentiate easily between themselves and potentially a lot of opponents. That's why I have the top of the uniform in a greyer color compared to the white gi tops Kaya and Denji are wearing. Visually, they would be able to pick a brighter white spot out of a lot of grey. Also, one of the things I've always thought was beautiful about aikido was watching Japanese instructors take on opponents that were way larger than them and toss them around like paper dolls by using their own energy against them. The enemy/opponent is taller to give the player that same sort of experience.