Metroid Prime: Blast Ball is a multiplayer demo for Metroid Prime: Federation Force, containing only the game's Blast Ball game mode. It was released on July 21, 2016 on the American and European Nintendo 3DS eShop, after being announced at the Nintendo World Championships 2015 on July 15, simply as Blast Ball, to be revealed as the complete title the next day with the announcement of Federation Force.
Upon starting the demo, General Miles will ask if the player wishes to practice or begin a match. If the player has done well enough, they will unlock the Shooting Range and Combat Sim tutorial for the Campaign. While the demo was said to lose online support in September, by which point the full game would have been released, online play support lasted until December 31st at 23:59 PM. Blast Ball in the full game would still be supported.
"Six mechs. Two teams. One free pass to play the most intense 3-on-3 sci-fi sport in the Metroid universe. Literally shoot the ball into the goal and grab power-ups as you fight. Increase your firing rate or even eject opponents from their mechs! Score victory locally or online* as you prepare for the full game Metroid Prime: Federation Force.
*This demo will be supported by online servers for a limited time beginning 7/21/2016.
Once the online servers for the special demo are discontinued, online functions will still be available for this mode in the full Metroid Prime: Federation Force game. Wireless Internet access required for online play. For more info, go to support.nintendo.com."
Updated in December 2016:
"Thank you for your continued support. The online multiplayer feature for the Metroid Prime: Federation Force Blast Ball demo will be discontinued at 2016/12/31 23:59 PST. The discontinuation of this demo feature will not impact the online multiplayer feature available in the full version of the game."