The Tetris 99 Grand Prix 12 event will start this week and those that participate can unlock an in-game Ring Fit Adventure theme.
The four-day event will start at 8am BST on Friday 24th April and ends at 7.59am on Tuesday 28th April 2020.
Those that take part and earn 100 event points while the event is live will unlock an in-game theme that gives the puzzler a new look based on the exercise-based action RPG.
Tetris 99 is now available exclusively on the Nintendo eShop for Nintendo Switch worldwide.
