Suggestion : Use packager.turbowarp.org to convert your Scratch Project to a HTML file then upload it to itch.io (after selecting the HTML option), then select 'Play on Browser' thing! It would be awesome for viewers!
Well, you can win that level... What you're (Or must be) doing is crouching and jumping together and touching the upper 2 spikes. That's the wrong way - you have to use the correct way!