The game has very similar gameplay to previous two instalments, and since they were both so fun, this is certainly not a bad thing. As always, you have to explore various different exciting worlds in order to find all of the hidden jigsaw pieces which either will be hidden somewhere or given as a reward for helping somebody. The worlds are even still in 3D, though from a top down kind of perspective similar to portable Zelda games. Plus, as always, Banjo isn't capable of doing everything as he is, and so various transformations are unlocked in order to overcome certain obstacles, these include a tank and a torch (among other things) which I thought were quite cool. Plus in this game you can use any of the transformations in any of the worlds, something which cannot be done in any of the other games.
But, of course, due to limitations of the systems, a few cut backs have been made. Aside from the obvious point of graphics, Banjo and Kazooie have fewer abilities than they had in earlier ones, they can't, for example, fly anymore. The number of levels has also been cut down. Whereas the others both have about ten, this one only has six (including the hub world) which makes the game's length a bit shorter.
Despite its shortcomings, this game is still excellent. The soundtrack is enjoyable, the graphics still look very nice (especially for a GBA game), all the levels are big, immersive and fun to explore and the game still has the humorous 'charm' that the other titles are loved for. It may not be quite on the same level as the previous two games, but I still rate it very highly. Rating: 9.3/10