How it all Began...
The very first Ice Arrow is Missing. This is where I got into modifying Majora's Mask. I ran into a lot of problems getting the hidden chest to work how I wanted. Even after looking at documentation I didn't really understand how a lot of it worked. I remember ending up just copying values from other instances in the game and just testing until I got it to work. I ended up having to change the flag on an ice block somewhere else in the dungeon because the only flag I could get to work to spawn the chest was used by it. Eventually later on (I think after part 9?) when I had learned more about modifying Majora's Mask I came back to all the earlier parts and updated them with what I had learned. For example in the original version of part 1 hitting the hidden switch to reveal the chest didn't move the camera to look at the chest to show the player where it was. That wasn't because I didn't want to do that, but rather because I didn't know how to setup that data nor did I know how to then tie the actor cutscene to the switch and chest.