Ernest Goes to Camp [1987]

A group of juvenile criminals is sent for vacation to Kamp Kikakee. The clumsy Ernest has to care for them, although he doesn't even know how to take care of himself. The other children at the camp show enmity against them, but the group knows very well how to defend themselves. They do also help the Indian owner of the camp when a brutal mining corporation wants to tear down the camp to mine a rare mineral. 
https://www.imdb.com/title/tt0092974/

Ernest Saves Christmas [1988]

Ernest P. Worell, a sweet but silly taxi driver who at times suffers delusions of grandeur, has just chauffeured a rather extraordinary fare: "His Great Red Oneness, the Claus" himself. It seems Santa hasn't got the magic for another Christmas season, and has come to Orlando, Florida for Joe Carruthers, the man he has chosen as his successor. But things quickly begin to unravel, thanks to Joe's meddling agent and Santa's increasingly unreliable memory. Incredibly, dimwitted Ernest soon becomes Santa's only hope! Joining forces with a young runaway named "Harmony Star", Ernest rushes to save the holidays as we know them. 
https://www.imdb.com/title/tt0095107/

Ernest Goes to Jail [1990]

Bumbling Ernest P. Worrell is assigned to jury duty, where a crooked lawyer notices a resemblance with crime boss Mr. Nash, and arranges a switch. Nash assumes Ernest's job as a bank employee, while Ernest undergoes Nash's sentence to the electric chair. But instead of killing him, the electrocution gives Ernest superhuman powers, enabling him to escape from jail and foil Nash's attempt to rob the bank. 
https://www.imdb.com/title/tt0099512/

Ernest Scared Stupid [1991]

Life could be pretty if there wasn't someone like Ernest P. Worrell on this planet. In this movie he helps to escape an evil troll out of his grave. That's the start of the end for the world. But... Ernest wouldn't be Ernest if he wasn't planning on saving all the people. This action doesn't make it any better. It's getting worse. 
https://www.imdb.com/title/tt0101821/

Ernest Rides Again [1993]

Ernest P. Worrell becomes a new adventurer along with his History Professor partner, Abner Melon. Once they team up together, they discover a really huge existing historical cannon and the crown jewels hidden near the jungle. Ernest must save the jewels especially, before a lousy mob keeps it. 
https://www.imdb.com/title/tt0106827/

Slam Dunk Ernest [1995]

Ernest P. Worrell becomes a basketball star after an angel bearing an uncanny resemblance to Kareem Abdul-Jabbar gives him a pair of magic sneakers. 
https://www.imdb.com/title/tt0114469/

Ernest Goes to Africa [1997]

The title says it all. There's a mix up involving stolen diamonds which Ernest has (naturally) made into a yo-yo and given to his would be girlfriend, Rene. But Rene wants a man of action, and doesn't think that Ernest fits the bill. After the bad guys come looking for the stolen diamonds and kidnap Rene, all of her fantasies come true as Ernest has to go to Africa to rescue her. 
https://www.imdb.com/title/tt0119068/

Ernest In the Army [1998]

Ernest P. Worrell is now in the military as a soldier. Once he begins, him and his team investigates a dictator who was responsible for the wars in the nearly village. Suddenly, Ernest finds a lost boy and has to keep him safe until his father recovers. 
https://www.imdb.com/title/tt0129908/