Rarest? I have no idea. We had Majora's mask in the gold cartridge with the moving Link in the front that was in the best condition like it came out of the box (we did play it yes, but we made sure nothing happened to go the to ruin it and it would always run perfectly) but then one day when my brother was in the hospital, my cousin asked to play it, then kept it on the edge of a counter and it smashed to the floor, ruining the outside of the game forever. Our cousin was never really forgiven for that due to how hard our parents worked to get us the game, and how we made sure it was safe and in perfect condition, only for stupidity to stand the cartridge up at the edge of a counter top and stand there as it fell, while I dived for it in vain. Other then probably that once rare game, I talked to a video game store clerk about how I had all three Fatal Frame games and he flipped out. But I don't think all three of the games are rare. I have Digital Devil sage 2, but not 1. But I don't think any of these games are rare, just hard to find.