You can see the timings for the event below; all you need to do to take part is head to the Nintendo Switch eShop and download the free Ninjala software (which you can do as we speak). Then simply load up the game at the time of the event and join in the fun.
As a quick reminder, Ninjala's release date got pushed back to the end of June due to coronavirus issues. All the more reason to be grateful for this second beta test, we suppose!
Will you be joining in? Did you take part the first time around? Tell us below.