Amazing work on this port!
As my first walkthrough ever I suffered a lot but I liked (first time playing 2D MG games).
I did a livestream and a full gameplay for my channel.
Also I got the "binocular" bug and a bug where the game freezes at the end of the game, after you climb the left one of three ladders.
I'm using a japanese Mega Drive 1 + MD V3 Pro Everdrive Cartridge.
Full gameplay:
Livestream: