Thanks you! :)
Yeah, I understand the movement slowdown issue, but I noticed it a bit late (at first I thought it only happened when the ship was hitting the top and bottom of the screen) and to fix it would have required me to re-write large portions of the game and I was running out of time.
Also, pretty much all of the UI was made right before I submitted the game, I probably could have animated the buttons, but I didn't really think about it at the time