Update

Hi!  I'm glad to announce all animatronics are now functional, along with all nights and custom night!  It will likely be a while before the official final release, however, due to a number of bugs impeding development, along with the Gameboy's general limitations.

Also, I happened to notice the game now has a retro-achievements entry, check it out here; https://retroachievements.org/game/25397!