Could've sworn there was a Mario enemy named Klubba, which was sort of like Sike but with a club, but after looking it up it's apparently spelled Clubba, with a C. Klubba is the name of a Kremling from Donkey Kong. Totally different series.
You almost had me for a second with Sidehopper, thanks to how similar sounds to the name of the crab enemies that were in the original Mario Bros., but I managed to pull through and get it.