The AI on higher levels takes SO LONG to make a move! Why did it take over two minutes to choose a basic by the book move for a Queen's Pawn opening? I know it's the Nintendo 64, but come on, that's just unreasonable. Couldn't finish my game against the max level computer because it was so frustrating to wait minutes for book moves, can't imagine what the endgame is like with it. Computer's level is actually quite good for 1998 consoles, but the animations have an ugly stink on them that makes me feel like they'd be from some unfunny early-2000s animated show or something. They are also pretty herky-jerky. The fact you don't select your opponent's computer level or anything until after a game starts is...bizarre, to say the least.
By the way, how do you fuck up the camera controls of a CHESS GAME? Get this, you can rotate the board left/right and flip it up/down. Makes sense, right? Guess the buttons, go on. Guess. You see, C Button left is up/down, while C Button right is left/right, rather than just making left and right be...left and right and up/down be up and down. Combined with a surprising lack of visual clarity (in a CHESS. GAME.) and the controls being super jumpy, you want to rotate the board to an upwards angle if you play in 3D a lot which when the controls of all things work against it is frustrating. You'll pretty much want to swap to the 2D board ASAP, which ends up turning off all the battle animations and at that point you're left with a really barebones-featured but good-for-the-time AI chess game with ugly menus.