I'm pretty sure that if I could get a peek at Castlevania: Harmony of Despair director Koji Igarashi's Netflix queue, I'd find that his most recent rental would be the 1993 comedy Groundhog Day.
Much like Bill Murray's Phil awakes every morning in Punxsutawney, PA to find that it's (spoiler alert) Groundhog Day, the characters in Igarashi's latest game -- a cast from 'Vanias past -- find themselves repeating the same trek through the same six castles over and over and over again in an attempt to find or buy better items and beat the bosses faster. Sometimes, they won't even be able to find the boss before the timer runs out. Virtually nothing is explained, it reuses background tiles and sprites from years-old games and is, frankly, not fun at all if you intend to play it alone. Save your $15. Buy this, this or this instead. (But not this.)
Played with friends, however, Harmony of Despair is actually ... kinda fun.