Unlock the Fire Emblem: Three Houses theme in Tetris 99

Nintendo just announced the addition of Grand Prix 6 to Tetris 99, which runs from 08:00 BST on August 23 until 07:59 BST on August 27, and this time it is a crossover event. With the event, Nintendo and Arika are offering you a chance to get the Fire Emblem: Three Houses theme for the game and the rules are simple:

"Each round lets you earn points, with more awarded the higher you place. If you reach 100 points, you'll receive the event-exclusive Fire Emblem: Three Houses theme!"

And that's all you have to do to get it. Will you take a shot at this?