5 0 0*** Spoiler - click to reveal ***The first opporunity to get this will come when you need an invite to Satan's party. You have two choices. In order to get the opportunity to dance you will need to choose to fulfill the request of the human Linda instead of the demon Felo. Linda is a singer and you have to find a replacement for her to get her invitation. Just outside the bar she is in, a little ways to the left (you will have passed them on your way in) are three chanters in stocks. Ask them to fill in for Linda and return to the bar. Talk to Ono and she will say she needs to see you dance. The dance sequence is a button mashing challenge similar in some ways to a quick time event as there is a timer. You will be shown the button sequence first then it will switch to you. The timer starts immediately once this switch happens. It will start with 3 button sequences, then eventually 4 and for me it eventually switched back to 3. Do not match the speed the button prompts are shown to you at. It is sometimes very slow and the timer will run out if you do. So once you have control just press the button combination as quickly as possible. If you make a mistake you'll here a buzzer sound and just quit and restart. Once you match every prompt perfectly the achievement will unlock.