Makai Island (NES)

Debug Leftovers
At the title screen hold B then press Start on the first controller to start a new game. Some debug leftovers will be enabled. Basicly this disable some collisions, so you at least will be invulnerable at any battle. Unfortunately, this will lead also to garbled game graphics. More disabled functions are available, but due to code changes are they are crashes the game. More additional debug flags was available, but now inaccessible. Debug mode flag is at address. Most of the same code is available in prot version, but can't be accessed via button code.

Continue
After game over, at the title screen hold Up then press Start on the first controller to start a new game. Work both in Japanese and US versions.

Hidden Text
At the end of both Prototype and Japanese versions the following text is present: BY MASAMITSU.KOBAYASI 87/3/2

Additionally, Prototype version contain more detailed copyright message at the end of next to last bank: MSX ....... 1985, FC COMMANDO 1986FC MAKAI ISLAND 1987 M.KOBAYASI S.40.3.24 BORN,THANK YOU !! NEXT GAME IS  SIDE ARMS !!

More messages from this programmer you can find in it's previous game: Commando for the Famicom. MSX game mentioned its a Mr. Do's Wild Ride, where you can find another short copyright string.