Hello jack!
The Quick Time Event (QTE) or struggle point should be beaten by repeatedly pressing the Spacebar key.
If it's not working, it can either be an odd game bug or an error in your system and your input registration.
Thanks so much for helping me and telling this information!
You're welcome very much!
One suggestion i have for the changed 3d game is for when the box puzzle make it a one step function where you can only move one step at a time mabey the same for the dragon rooms too!