Foam board, paint, glue, Popsicle sticks, emblem is from a set of parts I bought on Ebay, other various wooden things from a hobby store.

The Cobra Ninja Dojo is where Cobra trains ninjas. Notice the boards being broken by Sagat. I bought all the Street Fighter ninjas and pretty much all the new ones I could get. Since the Cobras and the Shadoloo of M.Bison dwarf the Joe's Ninja Force in numbers I felt that this was a necessary playset.