For my jam game Icy Mountain Hot Potato, I made the brilliant decision to once again roll my own collision code. As a result I introduced some mildly interesting unexpected behavior. As of just now, I've published fixed builds. I thought it was interesting enough to make a video documenting some of them, showing the before (bugged) and after (fixed). Have a look!

https://youtu.be/Bjr1IUajEUI