The Apollo Candy Bar:
The Apollo Candy Bar was discontinued, but did exist.  It was made by a Japanese Company called Meiji.  IT was a chocolate cranberry bar with 11 peaks in a package, with chocolate base and cranberry/white chocolate tops.
There was a strawberry variant.
The Meiji Corporation can be found 
HERE.
So, this island is obviously some grand Japanese experiment in which a weapon or disease will be created to seek revenge against all the enemies of the empire.  Obvioulsy, the monster is Godzilla, and the noises we heardin the first season are Mecha-Godzilla.
Mothra will be making an appearance in a few episodes.  And the sharks are probably some kind of mutant fish-godzilla that we haven't seen yet.
Solved.
What else is on Wednesday nights?