Delivered a crushing blow to the backlog today, by finishing the very last of my handheld games! And what a doozy it was too,
Harry Potter and the Prisoner of Azkaban (for GBA).

Had this cart lying around forever and had a long trip, so I busted out the GBA to play this rather mediocre RPG. It's pretty bizarre how many portable games Harry Potter got; they made action/puzzle games for the first two films, and the fourth onwards on GBA/DS. However, the GBC got the best ones - small little sprite-based RPGs based on the first two, which included a lot more stuff from the books.
For reasons unknown to me (scheduling?), the third film only got the RPG treatment on portables, which I believe was also the last one of these.
The game itself isn't great, although it's not awful either. You traipse around Hogwarts with Harry, Ron and Hermione, attending some classes, occassionally finishing mini-games and stuff. You can battle rats, statues, suits of armour, a whole bunch of spiders, enchanted mushrooms, etc. in many of Hogwarts' hallways & grounds. There's some light environmental puzzles in this one, which helps alleviate some of the boredom that was prevalent in the previous RPG games. It's pretty neat how these Harry Potter RPGs focused on fleshing out locations you wouldn't see in the console games or movies either, like the portraits halls, staff rooms etc.
Sometimes you trip over a bit of plot and the story will continue. This where a major problem sets in though. You could hypothetically level up all 3 characters a bunch, but those who have read/seen Prisoner of Azkaban know that Ron is mostly an afterthought towards the story's end. So don't bother giving him equipment or leveling him up; it's useless.
Another problem with this story's plot is that while in the book/film it has a very nifty ending based on mysterious revelations and ingenuity of our characters, it doesn't exactly feature a bossfight like part 2 does. They've managed to create 2 end-bosses, one of which is okay (but dull since you need to heal a character constantly), whilst the last one is a total pushover.
All in all, Harry Potter 3 for GBA is a very easy (bit harder than the previous entry though) RPG that you can beat quickly if you want (5-6 hours). It's not as charming as the Chamber of Secrets on GBC with its neat spritework, and on the whole I would rank amongst the lesser Harry Potter games. The Lego adaptations on Wii are still the best ones by a country mile, and the Zelda-wannabes on GameCube are better as well.
Rating: 5/10, rather forgettable, but not outright bad.