I'm planning on playing on Keyboard, I'm assuming we move our character with AWSD, at this point, do we shoot with arrows or mouse?

I beat the game missing a weapon upgrade (95%) now I want to go back to search for it, but the game doesn't allow me to go back, we NEED to beat the game first, after that, the speed run mode is on and I don't know how to turn off. How do I turn off Speed Run Mode?...

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Hello. Do you have an email ? Thank you very much.