>>718724942
I forgot that it even flashes green and that there's red, but I made this picture to explain it a bit better.
Basically you have to make sure to complete the directional arrow instructions before it flashes red, which is always on the 4th beat/count. It doesn't matter if you input the arrows while it's flashing green or not, that's just helping you keep the beat to count along with
>>718726213
Wrong!