I feel awful giving you such a workload, but I tend to always come across bugs no matter what game I play these days. I'm not even trying to find them, I'm just playing normally and I run into them.

Nonexistent promotion: The first promotion right after Funklord doesn't work. You choose to be promoted and nothing happens, but the next one works correctly and you start looping back through the levels again. But after every Funklord it happens again.

Can't use items: Items like timed teleport and especially icarus wings will just stop working even though you have time left. Cross button suddenly does nothing.

Can't exit mailbox menu: I used my icarus wings to fly to a mailbox near the edge of a landmass. I selected the mailbox just as a black truck was on top of me. I bought a couple of presents, then pressed circle to exit and it didn't work. It soft locked on me. I was able to buy more presents, but I couldn't exit the menu.