This past weekend’s ARMS Global Testpunch included 1v1, 2v2, 1v1v1, and 1v1v1v1 battles. It also included the new volleyball mode with 1v1 and 2v2 matches. The next Global Testpunch scheduled for this weekend will replace the volleyball game with basketball and also add in the Skillshot mode.
This was confirmed in their Japanese livestream. They also released some new screenshots in their “extras” section, showing off some other features below.