Incroyable alligator was released in the year 1980。Incroyable alligator is also called as Alligator, Tromeros krokodeilos skorpa ton paniko, Horror-Alligator, Bestia bajo el asfalto, Alligatoras - Sto stoma tou krokodeilou, Alligator - O Jacaré Gigante, Alligaattori。

Ramon the alligator is flushed down the toilet as a baby, and grows into a gargantuan monster by eating the corpses of laboratory animals who have undergone dubious hormone experiments, thus providing all the ecological and social subtext that one could possibly wish for, even if one doesn't normally go for films about giant alligators eating people left, right and centre - which is the inevitable and tragic result of Ramon's decision that the outside world looks rather more interesting than the sewers...

Incroyable alligator actors and actresses include James Arone, Richard Partlow, Robin Riker, Sue Lyon。