Samurai Shodown Sen
Unlock Draco and Golba:
You can unlock the bosses by completing a set number of Story completions with different characters.
They are only usable in Versus, Survival, and Practice modes.
Draco – Complete Story Mode with any 12 characters. Highlight Takechiyo and hold LT to select.
Golba – Complete Story Mode with all 24 characters. Highlight Haohmaru and hold LT to select.