Which GBA Pokémon Game in the DS Slot Has Totodile?

Pokémon Emerald Version is the only GBA-slot-compatible game that includes Totodile.

• Ruby/Sapphire: No Totodile (Johto starters absent).
• Emerald: Totodile obtainable via in-game event (after Battle Frontier) or trade.
• FireRed/LeafGreen: Kanto only; no Johto starters without trading from Colosseum/XD.

Insert Emerald into the DS GBA slot → Migrate to DS games via Pal Park (Gen IV) or trade locally.