Just for documentation. Mugg said someone else had reported the game freezing just as the Can Can ended.

I've documented this happening to me as well.

Just providing another report in case the info is eventually useful - I had this happen just now on hard mode at the end of the star power around 2/3 of the way through 2-2. Also this was with an AUS region v1.1 cart on original hardware (GBA SP) instead of an emulator.

Yeah just happened to me. Maybe it's a rare glitch? His video doesn't really match up to what I was doing. I had a lot more lives and points and stuff, though if you notice the score bar shifted to the right a lot on his, mine only shifted about one and a half characters. https://imgur.com/hYJsUXo