In certain RTTS training minigames there is a bug that can cause the minigame to be unfinishable. These are the minigames reliant on button mashing, so squats and weight lifting. I have carpal tunnel so sometimes one of my hands will lock up while I'm playing, causing me to only hit one of the buttons. When this happens, occasionally the progress bar will not fill and my player gets stuck in an animation loop of going between the starting and ending positions with no in-between. To be honest it's kind of funny looking. But it does suck when you're at 9 and it locks up.