Not sure if this is common knowledge since I haven't been on the scene in forever, but apparently you don't need a tunic if your health is so low for either hot environments or under water. https://kotaku.com/new-ocarina-of-time-glitch-lets-players-roll-through-fi-1821333437/amp a good way to find the pointer for this action would be using the Ram debugging tools. I myself was never good at Ram debugging, and I cannot remember the process to find ROM addresses from RAM debugging.. I know it is mainly trial and error disabling certain RAM functions in game and looking for the results, but that is all I can remember