I’ve used makecode for quite some time and I know that when I was a beginner I struggled with a lot of things. If You have any problems or questions, even more complicated ones, post them here and eighter I or someone else will try to help you.
A lot of things can be easy to google, but harder to understand or implement, and this is the perfect place to get help with that.
how do I change a players speed with the move block
HOW DO I CREATE A CUSTON HITBOX FOR A SPIRTE CUZ I REALLY HATE IT WHEN THE HITBOX IS THE PIXELS IT MAKES ME WANNA CRASH OUT AT MICROSOFT RAHHHHHh
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this question gets asked too much 
. make another sprite and make that the hitbox, and hide it.
If you are talking about the move (sprite) with buttons block, then you can click the plus and set VX and VY. VX is left and right, VY is up and down, and its in pixels per second
