How do you do the 1 star door clip and other clips

It was the same video used for another run so that would be resubmitted/duplicate run.

I have been waiting 10 days for my pencil sharpening speedrun runs to be viewed. The last submited run was ages ago and sent amessage to the 2 mods and still no reply 5 days after sending message to both of them. They are Kojax and the_hat.