As the title implies,
Teenage Mutant Ninja Turtles: Arcade Attack is set up to play like the old hack-and-slash button-mashing games that would often be found in arcades of old. The basic gist of these games is that two heroes walk through a series of streets, alleys, and hallways, beating up anyone who comes along. Real thinking or strategy isn't needed, just pounding buttons at the right times. As a recreation of those kinds of games,
TMNT: Arcade Attack is, for better or worse, a success. The repetitive action can grow boring rather quickly, and would have at least been helped by some variety in the bad guys -- but instead you face the same few template villains over and over. When the comic-book panel story scenes that occur between levels are more exciting than the gameplay, that's a problem.
Online interaction: The game can't be played online, but two kids who own the game can play cooperatively through the DS's wireless connection.