I'm glad you got all three endings! We figured the DDR + dating sim was naturally incompatible because it would be so difficult to read the dialogue and hit the right arrow keys at the same time, so we added a "Replay" option in case you want to just go back and see what dialogue options you actually got. The ideal solution is probably getting some sort of box with a scrollbar set up, but we unfortunately didn't have the time to implement.
Thanks for playing!