can i use android nostalgia.gbc? he uses practically 100% of the last bgb from what I saw he doesn't print

Hi, for emulators rules it's here :

Allowed Platforms:

Runs done on any of the following platforms are legal for these leaderboards. Any platform not listed is either inaccurate or of unknown accuracy, and are not allowed for runs.

Consoles:

Game Boy
Game Boy Color
Game Boy Advance
Super Game Boy 2
Game Boy Player (incl. GBI software)

Emulators:

BGB 1.5.8 (w/ Speedrun Mode) [LINK]
GSR r717 [LINK]

NOTE: It is required that emulators used for runs always be the most current version. This is true even if this list is slow to update.