What we got here is an actually fairly decent TV murder mystery that keeps behaving like it's a Hallmark movie. Graham Greene is the nominal star but they keep emphasizing the victim's daughter who nobody's heard of. Her father's skeleton is found frozen in the titular lake with a diamond in his pocket. Now, everybody's after the other diamonds and the plot kinda thickens...

Toho's crazy take on the Frankenstein legend - the monster's heart is shipped from Germany to Japan during WWII. The heart grows into a giant teenage boy who runs amok and encounters the adorable monster Baragon, who has also run amok. Damage caused by the monster is being attributed to the boy, and perhaps vice versa. Ultimately they are embroiled in a fight to the death. With American Nick Adams, and many Japanese/Toho stalwarts. Crazy, man.

A 1977 Vansploitation film about a guy and his supervan taking on bad guys while trying to win a van contest! Lots of cool vans and the lamest story since forever. Didn't even know there were vansploitation films!!

A 1985 ripoff of Mad Max where the hero actually moons the bad guys at one point...seriously! So completely bizarre it could make a memorable riff like Space Mutiny!

a priest travels to China, inheriting the ability to turn into a dinosaur then is convinced by a ****** to fight crime... and ninjas. This is a must riff.

Anime series with impossibly boring, overpowered 10 year old protagonist, who's sole goal in life is to commit genocide against one specific alien race.

Episodes are about 5 minutes long.

https://www.imdb.com/title/tt1802896/reference
https://www.youtube.com/watch?v=uczvIKDcnS4

Three-time Razzie nominated, pretentious yet well-meaning enigmatic poop on a celluloid stick.

How was this not nominated for a Rifftrax riff request before? It might be one of the best looking filmed movies to be riffed (if and hopefully when it's chosen).

https://www.youtube.com/watch?v=Sbl4nCcO0qo
https://www.imdb.com/title/tt5109784/reference

Great villain funny as heck!

The Police Lieutenant and the boat man interaction is enough to cause you to die laughing on its own. As well as the monster scenes. It's so horrible, it's great!

Failed Doctor Who spinoff with only a pilot episode.
Involving former series regular, Elisabeth Sladen's Sarah Jane Smith and K-9, The Doctor's robot pupper.

Opening credits:
https://www.youtube.com/watch?v=Hu7OiJpnlUs

https://www.imdb.com/title/tt0138972/reference

Does this really need a description. Danny Glover, Bill Paxton's outlandish character. Gary Busey is the gung ho military operator. This is a steaming pile riffe for the riff.

Adam Sandler's debut film

I’m not sure how this hasn’t been suggested already...

Pizza Man!

How could you not have riffed a movie starring Frankie Muniz as a pizza delivery boy who gains superpowers after eating a genetically altered tomato?

Featuring Diamond Dallas Page, Shelly Long, Corbin Bernsen, and Michael Gross.

With cameos by Rowdy Roddy Piper, Stan Lee, Adam West, and Noah Gray-Cabey and Leonard Roberts (playing their Heroes characters).

If you thought The Room was bad, then you've GOTTA check out this piece of cinematic trash from Glenn Danzig. Words can't describe how bad this one is, well except maybe for "YUCK", "ARRRGGH", and "WTF"

This is a terrible 80's movie about a man who catches his wife having an affair with his best friend and goes on a killing spree. It features many great scenes that could be riffed including games of truth or dare that end in: faces being peeled off, grenades exploding in mouths, fingers being cut off.. complete with super cheesy special effects make-up. Pair that with "Birdemic" quality camera work and sound and you have one of the corniest 80's slashers around. Perfect for riffing!

Link to IMDb page:
https://m.imdb.com/title/tt0092118/

Link to trailer:
https://m.youtube.com/watch?v=4WZRcOcK3B8

This movie from 1990 is on Amazon Prime. It involves a high school kid finding a leprechaun in a beer bottle, and using it to get a date with a cheerleader he likes (and other things.) Production quality is reminiscent of Hobgoblins. It's amazing and terrible, and would make a fantastic VOD!

This one seems ripe for a Rifftrax shorts. Stumbled upon it on Youtube.