in godzilla comics there were a race of aliens that hunted giant monsters they arrived at earth tracking down a giant bat named bagorah. they soon found out that it was killed by an even stronger monster. so they went out to find this monster. it was godzilla. they all died accept i think 1 who got away. there spears and weapons did nothing to godzilla. u dont have 2 go there but plz check it out. there r also many alien species that tried to conquer earth