Tom & Jerry is a really basic platform game based on the popular cartoon.  The graphics are poor, the sound is generic, and the controls aren't the best.  The enemies consist of featurless zombies, cockroaches and bugs.  Some of the platforms are almost too high and require a run to reach them.  You can bop enemies from above, though even the mere cockroach takes three hits to kill, making it better to use the ball throw.  I guess this game is alright if you ran out of basic platform games to play, but Super Mario World this is not.