Welcome aboard, jpdanger.

Most 4-player MAME control panels have the controls in this default player order -- 3 1 2 4
The two most commonly used positions (Players 1 and 2) are on the center-left and center-right -- they have the best viewing angle and puts those players closest to the center of the screen.
For some games like TMNT, the players appear on the screen in 1 2 3 4 order.
For games like that, you can remap the buttons so the default Player 3 stick/buttons (far left on panel) control Player 1 (far left on screen), P1 stick/buttons control P2, and P2 stick/buttons control P3.
A friend likes playing The Simpsons as Bart (default P3) so I remapped P3 controls to P1 stick/buttons and set Marge (default P1) controls to "none".
Alternate method: Use a 2-player version ROM (tmnt2po, gauntlet2p, simpsons2p, etc.) that allows each player to choose their character.
BTW, the letter verification and "apple sentence" test is a PITA!
Gotta keep the spammers out somehow.

Now that you are a "Jr. Member", you don't have to deal with that any more.

Scott
EDIT: Updated the
joystick orientation text and image in the FAQ to clarify player order on a typical 4-player MAME panel.
