Minimum should have a more diverse group of playable characters. For example, there could be races you choose from, such as Robots, SynthSnakes, Aliens, and Demons. Each would have a unique attribute and a detriment, while the default race (Human?) would have no attributes or detriments. Robot: Robots can take a lot more damage, but have a much lower jump and move more slowly. SynthSnake: A SynthSnake is far more agile and can slide up walls, but doesn't hit hard as a result. (A SynthSnake is a humanoid snake.) Alien: Aliens have a special tractor beam ability to draw people in, but they're far squishier and more easily killed than others. Demons: A Demon has the ability to either have two types of swords or two types of guns, but moves slower as a result.
That sounds... absurdly unbalanced... And visually that would be a mess. The minimalistic art style already makes it hard to tell if you're playing as a human in the first place. I think different races would just make everything confusing for a the player and throw weapon balancing into chaos.
This isn't an MMO... we don't need a bunch of different races. We already have enough gameplay options with all of the armor and weapon variety, most of which is still in need of balancing.