Removing HUD elements( MP Trilogy)

[agoaj]

I'm trying to remove hud elements and the pointer sprite in the multiplayer in Metroid Prime Trilogy.
I first found the Visor Opacity option in MP2(which was tricky for me. The value was 100 in the game but the memory was 0xFF). When I load up the multiplayer mode that address is definitely the visor opacity setting, but changing it doesn't do anything in game(it was only used in singleplayer in the GCN version).

How else should I go about this? I'm trying to find the sprite cursor position but I'm not sure what kind of data type or range it would have.