I made that map, but this year my studies are taking a lot of time in my everyday life, so I cannot teach you. I learned most of it by myself, try to compile a simple map, and add some stuff each time.
Yup, I discovered Cave Story two days ago. I finished the game (normal end) in one night, and the next day, I decided to beat my record of speed modelling, so there you go, I present you Quote, a new ragdoll for Garry's Mod.
You can download it here...