Big Head Mode-Start a game in any mode. Press start to pause the game, then press the following buttons in this order: Right on the Control Pad (not the analog stick), Right on the Control Pad, Left on the Control Pad, R, Z, Start, A, Start, A, Start, Z. Don't worry about what happens as you enter the code, just keep pressing the buttons until the entire sequence is complete.
Tip: More Fouls, Less Blocks-If you are sick and tired of getting blocked by the computer under the basket all the time, use this method. You shot for three, missed the shot, but got the rebound under the basket. Right away you thought, the DUNK, the DUNK! And they blocked you silly, two or three times in a row. Well, if it happens again, remember this. Wait a second after you have gotten the rebound. If you are right under the basket, tap B for the fake shot, then when they are on the way down, DUNK IT! If you are right by the little circle that indicates where you can't draw a charge any more, then just dunk it, even if there are two guys under the net. Most likely, what will happen is they will block your elbow, you will get the foul and the basket! Now go and get 'em kiddo!
Disco Floor Code-Start a game, then press pause (Start) and enter the following button combination: A, C-Up, Control Pad Down, Control Pad Up, C-Down, R, R, B, C-Right, C-Right, Z
Hang on Rim-Whenever you do a two hand dunk just hold the B button and you'll hang on the rim. But don't hang for a long time or you'll get a technical foul.
Wrong Players in Replay-I have a pretty interesting glitch for NBA Courtside. Get into any type of game -- it doesn't matter. Do anything in the game, with anybody, and then get it so that you can substitute players into the game. After you substitute the players in, go to replay mode and go back to any point in the game where you had the original players in. Say you had Shaq in, and he did a monster dunk, and then you substituted Dickey Simpkins in for Shaq. In replay mode, Dickey would be doing the monster dunk Shaq had been doing, even though he hadn't been in the game!
Play Hidden Teams-Code: While holding L button, select Pre-Season game with A button. Now, scroll all the way to the right. Three new teams will be playable: Nintendo, N64 and Left Field.