Inventive writer-director Robert Rodriguez wraps up his trilogy with the charming, low-rent "Spy Kids 3D: Game Over," another lark in the saga of two special-agent kids.

In this final installment, most of which needs to be seen through old-fashioned red-and-blue-lensed 3-D glasses (which the theaters provide free), Juni Cortez (Daryl Sabara) has to battle his way through escalating levels of a virtualreality video game.

His mission is to save his sister (Alexa Vega) and, indeed, children the world over, from being brainwashed by this deadly game, the brainchild of The Toymaker (Sylvester Stallone).

Rodriguez has brought something new and refreshing to each chapter of "Spy Kids," and this one, which puts the viewer right inside the video game with Juni, is also fun, although not quite as endearing and surprising as the first two outings.

Once again, the importance of family is underscored. Who else will back you up in an emergency if not Mom, Dad, Grandpa and Grandma, the superheroes of everyday life?

Everyone from the trilogy comes by to take a bow, including Antonio Banderas, Steve Buscemi, George Clooney, Alan Cumming and Tony Shalhoub. But it is Juni and his grandfather (Ricardo Montalban) who are this movie's chief players, and the others are sorely missed.

Stallone plays four roles, as The Toymaker and three aspects of his conscience. It's hard to say which performance is the worst.

Stay through to the end credits, where the two child protagonists (Sabara and Vega) are shown as they were then and as they are now. Rodriguez's best achievement is in spotting the innate talent that would shine through in those two kids.