Kinda disappointed.
I played all the way to shrine 6. After beating shrine 6 I save and quit to go back to the first spawn spot to save walking time. Now everytime I access my map or menu, the game gives me a kernel crash. Can't beat the last shrine at all if I can't change weapons :/
Also after a certain point in the game I became invisible.
Ennemy doesn't damage me anymore unless they throw a projectile.
I wish I knew sooner about this.
Playing on a real game Boy color by the way. No emulation....