The Little Goomba is the first enemy that you see in the very first Super Mario Bros. game. In Mario 3, Nintendo introduced two new variations of Goomba: The Micro Goomba and the Para-Goomba. While regular Goombas just walk back and forth, Para-Goombas can either jump around a bit or fly. Micro Goombas will cluster around Mario or Luigi and spin in circles, inhibiting the Brothers’ ability to jump. They’re more of a nuisance than an actual PROBLEM, but I’ve definitely not jumped out of the way of more deadly attacks because of them, once or twice.