Ok so here's the idea with this:
Cyber is a fast boi who likes straight lines, as it allows him to go fast and gain a multiplier (as far as I've seen). The Brick Walls are to keep a full spawn's worth enclosed to bounce back and forth for a while, racking up a bunch of points. You know how if you collide with a Basic from the side it activates but doesn't give you any scrap? Well it turns out Batteries, when hit side-on, still give you all of the benefits. That's all well and good, but when facing downwards, a roboto will charge up the battery a bunch but be consumed in the process. However, when hit side on, it gets the bonus charge but doesn't eat the lil guy, hence why I made those small gaps where the Cybers will bounce back and forth at high speeds getting permanent multipliers for a bunch of them. I repeated that as many times as I could. This layout works best when you're actively switching the completed batteries back into the lower position, and works even better when there are still walls, but it can get up to about 50k spm if you try hard enough. Glhf yall!
Also dev if you see this, really neato game! Its kept me going through the start of virtual school
Edit: If you put Batteries under the Brick Walls then your spm does up drastically, like I'm easily hitting 150k spm without any involvement