Cogwarts

Cogwarts appeared in 1995 TV series called Saban's Masked Rider. Cogwarts are a trio of toad-like mutants that were sent to assist Plague Sentry and his Plague Patrol in their battle against Masked Rider and the Power Rangers. The three of them were destroyed by Masked Rider in "A Friend in Need Part III". They fit the category of Gorks Monsters.