I was thinking about it and what if there was a Scratch gaming system. Then I thought that what if WE could collaborate to make one. If you like to here more then reply to this post. I will make a project telling more. The people that help ask for their job.

Jobs: Sketch, you draw the plans 0/4 available Designer, you help design it 0/4 available Head, you do both of those jobs 1/2 available

It will run a Pi
It doesn't require a screen

What do you mean by Scratch Gaming System? I have a makey makey and you can make game controllers with them.