Thank you very much for all the kind words everyone! I'm so glad you enjoy Crisis Point so much.
You need a specific version of DirectX for games made with this engine.. I think it's some version of DirectX 9? Sorry, this issue crops up every once in a while, but it's super rare for a computer to NOT have the proper version, so I can never remember the exact version needed.
If you have an existing save file, it should work with future versions of the game typically. It doesn't always work, but I do my best to ensure saves are compatible between versions so you don't have to restart from scratch.
Nah, just the force shot ammo. I like scattering force shot ammo around to encourage people to actually use it more, since a lot of players tend to ignore it

Plus the little bits of interactive environment are fun to have.