Yeah they do go into the walls and sometimes get stuck in there. I tried to fix it but I don't think it worked lol. They caan go through walls, I disabled the collisions because having 200 would cause huge lag with physics, so I implemented a context steering avoidance system to make them avoid hitting each other and walls which helped with performance. However in the gameplay you rarely see more than 50 so I think I could have just left collisions on lol.
Thanks for playing!!