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Despite all of the cool weapons seen in the Half-Life universe, this inventive speedrun – dubbed "Project CR" – sees hero Gordon Freeman using only the basic crowbar through the entirety of this ridiculously fast run.

Seriously, if this was any other speedrun, we'd still be astounded at the creator's quickness through the large campaign – with the run topping out around 45 minutes in total – not to mention the obvious work that went into memorizing these perfect pathways through the world.

But sticking with the crowbar throughout and still surviving that boss fight? We're slow clapping in your honor.