This… this is a good Mario Kart game.
Seeing that this is a GBA title, there are technical limitations. The game is emulating the Super Nintendo’s Mode 7 with it’s tracks. Also, like in Mario Kart 64, the character’s are 2D sprites, not 3D models.
All that said, it’s a really fun Mario Kart. Most of the power-ups from the 64 game are present, including Lightening, Blue Shells, and Stars. The difficulty ramps quite high on 150cc. I found that 100cc was just right for me (though I ranked in all cups and all CC’s).
I’d give it a perfect score, except that Mario Kart 64, and Mario Kart: Double Dash are undoubtedly better games. Double Dash especially.