Unfortunately my best example isn't even relevant in BBCP, thinking it over. For the sake of example, let's say BBCP Noel 4D was as stupid as it is now. It has head, Body, and Projectile invul, which means anything but Foot will not hit it during its invul frames. In CSE, since Comet Cannon only has Head, Body, and Projectile, it will whiff against 4D's invul. Fast-forward to BBCP and now it also has Foot properties, and it will now beat Noel's 4D.
(but Noel's 4D doesn't have Head invul anymore, so it'd lose anyways )
But I'm sure there's at least one other move in this game that was only vulnerable to Foot property