SEGA started the operation of the 7th Anniversary version Border Break arcade game in Japan. The game released first in 2009 September 9 in Japan and to celebrate the 7 years SEGA started several campaign in the game.

Each campaign includes several gifts for the players and SEGA going to runs them until October 16, 2016 in different schedules depends on the campaign.
SEGA also opened a teaser website for the 7th Anniversary campaign with the details what you can find in here:

Clear them and grab the special gifts!