What do ninja slugs eat?

Ninja slugs, a fictional concept rather than a real species, would likely have a diet similar to that of real slugs, which primarily consume decaying plant matter, leaves, and fruits. If we imagine them as stealthy creatures, they might also munch on fungi and algae, utilizing their camouflage to blend into their surroundings while foraging for food. In a whimsical context, they might also enjoy the occasional "ninja snack," like tiny insects or other small, unsuspecting critters.