I wonder if the game would resist my game-breaking skills this time, because that:
was hilarious. The gravity was crazy and I was bouncing all over the place when trying to move. It was even worse when you did that outside.
I've got an idea when I was in Fluttershy's Cottage and wanted to try something. I've got a different result than I expected, which was the broken orientation bug, resulting in easily getting stuck in the corners.
The interesting thing is, that other players see you normally, even if you're upside down and unable to move properly from your perspective. That was disappointing.
Also, I've managed to get beneath the ground in Ponyville, so I took a look what's inside the houses and as I thought - they're completely empty with some grass inside.
Thank Celestia there was a floor below the ground to regain energy to fly, otherwise I'd end up endlessly falling in the bottomless pit.
So now I know, that maps have invisible borders in all sides.
Nopony would have any chances with me in hide and seek game.
That was fun when players were able to see only my head protruding from the ground. Some players may remember that, because that one was visible from other players' perspective as well, because they were asking me what I am doing.
While getting through the floor was an unexpected one-time bug (it would require further investigation to recreate that), the one with broken orientation is pretty easy to make, when you know how to approach that.
The other common bugs like multiple hats are obvious, so there's no point for me to report them.
Happy testing everypony! Be sure to do silly things to bug the game!