The Side A Aries Riddle requirement is as follows -
"Achieved "No Rank!" in "Clair De Lune"".
Simple. The first level of the game requires a minimum score of 5000 to get a rank. I just kept myself out of the line of hearts in this level, mostly keeping to the right on the second half. Pushing yourself to the right will avoid most lined up hearts, the collectible that nets you 1000, and so on. Once finished with anything below 5000, pop.