Yes, Pikmin are units. I do need to explain the basics of the plot, don't I? Anyway, Red Pikmin are offensive, dealing bigger damage and boasting Flurry Attack for a special. Yellow Pikmin are also offensive, but they have less power in exchange for better range. They have bomb toss for a special. I ran out of motivation to make the blue Pikmin (Copying the same sprite over and over is very tiring.) but they'd be defensive. Toasting Hermit Crabs don't have incredible power, but they still hurt. Self-Made toast is also a lot sturdier than it looks, which lets the crab take more hits. They are unable to perform special attacks. Sheargrubs put up a respectable fight, but they don't last very long. They are unable to perform special attacks.
Also if you have ideas for the enemy units I'll be happy to make them. And if you want regular units, you can do more than random characters. You can make Scratchers, so I'll just put a thing where you can't select two of them.