For some reason, 2 of the ghosts are green when you use the all 4 ghosts always under effect of energizer cheat.

Ms Pac Man, Namco version

Player1 Infinite lives
00003F 06

Player2 Infinite lives
00004F 06

Ms Pac-Man can Walk through walls
000481 00
000482 00
000483 00
000484 00

Player1 Stage modifier
00003E ??

Player2 Stage modifier
00004E ??

All 4 ghosts always under effect of energizer
0000CF 0F