Nintendo of Europe just revealed that a new collaboration event will be held in Tetris 99. The said crossover will give you a chance at getting an exclusive theme. But you better be quick because it’ll run from 8am UK time (9am CEST) on 23rd August until the 27th.
Check out the tweet below:
The #TETRIS99 Grand Prix 6 is on from 09:00 CEST on 23/08 until 08:59 CEST on 27/08!
— Nintendo of Europe (@NintendoEurope) August 16, 2019
To be clear, this is for the UK accounts for now but its a good guess that they will be having this for the other regional accounts as well. Fingers crossed!