I looked through some Bullet documentation on Continuous Collision Detection, and I think it’s fairly easy to enable. However, I wanted to set up a base test case that had tunneling so that I could see if I could fix it. While doing this I couldn’t actually get tunneling behavior that couldn’t easily be fixed with options already in Blender. So this brings up the question:
Do we actually need CCD options in the BGE? If so, please provide a .blend (made with 2.5!) that demonstrates the need for CCD.