This is so amazing!!! I can't believe someone made a video of my very first game. Just wow ♥ and you've helped me see a lot of aspects I can improve on.
Congrats also for finding the key! Not everybody finds that.
It looks like the only thing you missed was the dash-roll function, which you can use by double-tapping left or right. This allows you to roll right through those guys in the blue hoods, and also to easily destroy multiple crates in a row (very satisfying!)
Honestly thank you so much!