are ghost enemies that disappear, then reappear near Isaac and spit a cluster of spectral tears (similar to Monstro's Lung
) at him.
Wizoobs may be a reference to Wizrobes from The Legend of Zelda due to their similar names, similar sound effects, and attack patterns.
They could be a reference to Boos from the "Super Mario" series as well, considering that they look and act like boos, as well as having "boo" backwards at the end of their name.
behave the same as Wizoobs, but fire a Brimstone
beam instead of spectral shots.