Ecosystems:
C++
MarioLANG
My interpreter for MarioLANG in C++. See http://esolangs.org/wiki/MarioLANG for a description of the language.
mariolang.cpp is the actual interpreter and the .mlg-files are sample codes in MarioLANG for testing purposes.
genML.js is a MarioLANG text generator using Node.JS.
99bottles.mlg is not by me. Wouldn't even start making it anyway.