>>35858702Game Boy ROMs need special programming to make use of the SGB and GBC, and only a specific type of cartridge is able to do the latter.
Game Boy + SGB
>Pocket Monsters Red/Green/Blue/Pikachu>Pokémon Red/Blue>Pocket Monsters 2: Gold/SilverGame Boy + SGB + GBC
>Pocket Monsters Gold/Silver>Pokémon Yellow>Pokémon Gold/SilverGame Boy Color
>Pocket Monsters Crystal Version>Pokémon CrystalSuffice it to say that the retail release of Gold and Silver can be played on a grayscale Game Boy, given some color enhancements with the SGB, or given full color with the GBC.
>>35858753Lake of Rage = Ikari no Mizuumi
Ikari = Anger/Wrath/Rage
Ikari is also the shark Pokémon, so "Lake of Rage" could be "Lake of Ikari", but the Lake of Rage doesn't exist in the demo so it's maybe just a coincidence.