Pokemon white (USA) Code Question, and Request

[SpartanG01]

First things first, for the list of AR codes on the Action Replay website do you need the (M) code? No$Gba puts a question mark next to it?

Also, is there a code to remove the 3D markers on the ground around buildings and what not? I found a couple but none seem to be working so far...

[AllyKat]

First things first, for the list of AR codes on the Action Replay website do you need the (M) code? No$Gba puts a question mark next to it?

The code is necessary to properly save using the No$GBA emulator. If you are using an actual Nintendo DS system ignore it.