Re: size. I think I understand what you’re saying. I skipped over it because partially because I’m not sure how to measure the objects (they all seem to say “scale 1.0”), and partially because they’re quite large for projectiles and walls. I’d estimate the projectile is 15cm and the object I’m colliding against is 10cm. I’ve also tested at speed 3500 with the same problem. I’m mostly using default assets (the wall, for instance, is in the starter pack) and have kept them at sizes that tutorials have had no issues with.