Maken X [DC]
Pause gameplay and quickly press Up, Right, Left, Down, B, L, R, A, Right, X, B, Left, R, Y, Up.
Get Full Pause Screen
Simply press X + Y after pausing the game.
Pause gameplay and quickly press Down, Left, Up, Right, L, A, X, Left, R, B, Y, Up, L, A, Down.
Select a Character
To select who you want to be, beat the game 20 times and enter Left, Right, Up, Up, X, B, L, Y, A in 3 seconds.
Press the Start button, then hold X+Y to get the clean pause. Press it again to return to normal