Graphically, this is probably as close to the cartoon as you can get on the GBA. Each of the characters not only looks like they stepped out of a Tom and Jerry cartoon, but move like it as well. From Jerry's quick mousy steps to Tom's heavy-footed jog, everything is here. As you progress through the game, things only get better. It's fun to see all the different 'detail' animations that have been thrown in for fun. For example, on the park level Tom has a run-in with Jerry's Uncle Pecos. Now, people who have seen the cartoon he appeared in will remember that whenever his guitar string broke, he always pulled one of Tom's whiskers. Well, not only does he yank the whisker like he did in the cartoon, but after having his whisker pulled, Tom does that weird jumping-pain animation.
Soundwise, Tom and Jerry could use a little work. The background music is decent and provides a nice peppy 'chase' atmosphere for the game, but I would have liked to have heard some of the classic background music from the cartoons. It would have at least been nice to hear the Tom and Jerry theme song at the title screen. What's here is good however, but after seeing the other details thrown in elsewhere, it's easy to be a little disappointed.