Looking for a late 80s/Early 90s fantasy film:

• Boy is given necklace with green gem from grandfather
• necklace opens portal to fantasy world in basement * I believe the gem creates a door which the boy goes through. He is unable to return until the task he is given in completed. There may have been a small word-based ritual that activated the gem.
• Boy befriends frog creature
• Large Zeus-like giant king on throne
• Targeted towards Children
• Color
• Last remember watching in the late 90s
• It is not Never-ending story, Storybook, or PageMaster

Anyone have any ideas? I have already gone through all of the "80s/90s Fantasy/sci-fi" lists on IMDB, and have searched every combination of search terms on Google.

Looking for a late 80s/Early 90s fantasy film:

• Boy is given necklace with green gem from grandfather.
• The necklace opens a portal to a fantasy world in the basement. I believe the gem creates a door which the boy goes through. He is unable to return until the task he is given is completed. There may have been a small word-based ritual that activated the gem.
• Boy befriends frog creature.
• Large Zeus-like giant king on throne.
• Targeted towards Children.
• Color.
• Last remember watching in the late 90s.
• It is not Never-ending story, Storybook, or PageMaster.

Anyone have any ideas? I have already gone through all of the "80s/90s Fantasy/sci-fi" lists on IMDB, and have searched every combination of search terms on Google.

Looking for a late 80s/Early 90s fantasy film:

• Boy is given necklace with green gem from grandfather
• necklace opens portal to fantasy world in basement
• Boy befriends frog creature
• Large Zeus-like giant king on throne

Anyone have any ideas? I have already gone through all of the "80s/90s Fantasy/sci-fi" lists on IMDB, and have searched every combination of search terms on Google.

Looking for a late 80s/Early 90s fantasy film:

• Boy is given necklace with green gem from grandfather
• necklace opens portal to fantasy world in basement * I believe the gem creates a door which the boy goes through. He is unable to return until the task he is given in completed. There may have been a small word-based ritual that activated the gem.
• Boy befriends frog creature
• Large Zeus-like giant king on throne
• Targeted towards Children
• Color
• Last remember watching in the late 90s
• It is not Never-ending story, Storybook, or PageMaster

Anyone have any ideas? I have already gone through all of the "80s/90s Fantasy/sci-fi" lists on IMDB, and have searched every combination of search terms on Google.

Looking for a late 80s/Early 90s fantasy film:

• Boy is given necklace with green gem from grandfather
• necklace opens portal to fantasy world in basement
• Boy befriends frog creature
• Large Zeus-like giant king on throne

Anyone have any ideas? I have already gone through all of the "80s/90s Fantasy/sci-fi" lists on IMDB, and have searched every combination of search terms on Google.

Looking for a late 80s/Early 90s fantasy film:

• Boy is given necklace with green gem from grandfather
• necklace opens portal to fantasy world in basement
• Boy befriends frog creature
• Large Zeus-like giant king on throne

Anyone have any ideas? I have already gone through all of the "80s/90s Fantasy/sci-fi" lists on IMDB, and have searched every combination of search terms on Google.