you can't get mamoswine in Pokemon leaf green because it doesn't exist in leaf green
You can't catch Igglybuff in Leaf Green. You can only see it.
Black Leaf on Green Background was created in 1952.
The code for Mamoswine is POKEMONDOTCOM.
A Mamoswine evolves from a Piloswine which evolves from a Swinub.
She does its either Leaf or Green.