"PHEW!" THE PRINCESS HAS SAFELY RETURNED
The game is amazing! I loved it from start to finish, and it perfectly felt like a NES game. I like the 2 heroes, they're cool, each puzzle is unique and they're all fun to solve, I've always been impressed by people managing to make puzzle games and this one was specially great. And I sure didn't expect 21 stages when I started, the game is long and overall very ambitious.
Either the password to the Entrance doesn't work or I wrote it wrong. Also in the action I had difficulties parsing how the 90° line of sight is blocked by armors at first (although I think it's as it should be and it's not complicated in the end), there could be a way to fully see it at least once.
Awesome game!