Reviews provided by RottenTomatoes
New York Times:
The film recovers from that initial confusion to get stronger as it goes along, and to shape up as a free-form playground for its various masquerading stars.
Joel Schumacher submits to the Wagnerian bombast with an overly busy surface, and the script by Lee and Janet Scott Batchler and Akiva Goldsman basically runs through the formula as if it's a checklist.
By now, Jim Carrey is doing sarcastic takes on his own sarcasm, and there's something funny and a little scary in that.
It's lighter, brighter, funnier, faster-paced, and a whole lot more colorful than before.
The second sequel to Tim Burton's 1989 blockbuster makes its predecessors appear models of subtlety and coherence.
As for Kilmer, he gamely steps into the dual Batman/Wayne role but can't get much traction, finding, as Michael Keaton had, that beyond a stern jaw there's not much to be done with it, since the suit does most of the work.