OK, I'm not even sure if this is the correct place to post this, but I don't see a general hacking thread, so here we go.

What I am trying to do is locate a 2d image modifier for one of my N64 games using Nemu64. Right now, I've currently located a 3d image modifier for the player controlled character, and an action + image modifier for one of the boss characters. The code I want to find will change the image of a 2d-balloon located in the players life. I'm thinking I could use either the player, or boss image modifier to find the 2d-image modifier for the balloon(since they should be loaded into the level script around the same time), by using nemu's assembler to set breakpoints on those codes.

Methods I can use:
Assembly hacking
Ram hacking(memory searching)
Rom hacking

Codes available:
Player Image modifier
Player action modifier
Boss Image modifier
Boss action modifier