Okay, I tested the mod and enjoyed playing it—it's really good. Great work, Oofy! However, the Vigilante feels a bit limited. For starters, he doesn't have a superjump, so I couldn't get past the tutorial; he can't break metal blocks with just a Mach Run, and you have to press C to drop dynamite that breaks them. But even with the dynamite, I couldn't get past Pizzascape because there are different types of metal blocks that the dynamite didn't work on.
In short: it's a good mod, but the character is limited.