Such a fun core game loop, I very much enjoyed forcing the little guys into the meat grinder lol. I think you have real potential for a bigger game here if you keep working on it. The writing of the tutorial robot is really solid and full of personality too. All three of the build options (conveyors, etc) felt fun and had their own use cases and potential for invention. Mouse wheel to rotate belts feels great. Keep up the good work!!
edit: also I got softlocked at the start of the 200 burger wave, the background never loaded and the lil guys never spawned in. which was a shame because i was really enjoying my run xD