Samurai Shodown/Secrets

Play as Galford's Dog Poppy (Xbox, PS2)
At the character select screen, hold down start and choose Galford.

Play as Galford's Dog Poppy (NeoGeo)
At the character select screen, highlight Galford and enter the following sequence: + (any button)

Enable Red Blood (NeoGeo Home Version)
Go to the Options menu, highlight Exit and press   and   at the same time.