When you complete the current version of the game, you will receive a demo version password.
Follow these steps to upgrade your game to a version with testing content:

1. Open the Yusha Prototype Library page on Steam.
2. Click the gear icon in the top right corner and select "Properties".
3. Switch to the "Betas" tab.
4. Enter the password in the box under "Private Betas" and click "Check Code".
5. Done!

If you still can't access the beta content following the above instructions, please leave a comment below and we will address it as soon as possible!