I'm not so good at describing myself, but this wikipedia entry on the Mighty Morphin' Power Rangers movie tends to sum me up well:

"Roger Ebert gave the film one of four stars, saying that the film is "as close as you can get to absolute nothing and still have a product to project on the screen" comparing it to synthetic foods in brightly-marketed packaging with no nutrtional content. Ebert felt that the characters (with the exception of Ivan Ooze) lacked personalities, and that the scenes of monsters rampaging through the city harkened back to the worst Japanese monster films. Mick LaSalle of the San Francisco Chronicle found the fights, "only adequately choreographed”, called the battle in the climax “a complete disaster”, stating that it made no sense in timing, that protagonists were not very intelligent, and the actors playing them unremarkable.”