Demon Chaos is a hack ‘n slash game published by Konami for the PlayStation 2. The game is set in feudal Japan in the 1500s and revolves around a priestess who has been given eternal youth until she exterminates all the demons. She has been given charge of a mystical beast from the gods, Inugami, which is played by the player. The unique aspect of the game is that up to 65,000 enemies can be on-screen at once. [Info from Wikipedia]
In the beta version the HUD was differen:
The in-game messages from the priestess had a different portrait:
In the video we can see some big red gems in some of the areas, where the normal Blood Crystals should be: probably they are just a beta version of the same crystals. The columns that shots the arrows were blue, while in the final version they are red/brown. The weapons menù was more detailed, with bigger photos of the various swords.