Final Fantasy XV Platinum Demo now live!

[Sunstrider]

Kowan said:

SO apparently there are 2 secret weapons which adds more to the gameplay! The Hero's shield and the shuriken. The shield can be used WITH a sword and let's you defend and counter the Iron Giant's attack while the Shuriken is useful for long range aerial attacks. 

I can't seem to get the video working, how/where is the shield and shuriken unlocked? I only managed to get the stronger versions of the sword and hammer.