At yesterday's PlayStation Showcase, Square Enix revealed a new title hitting the PlayStation soon.
Foamstars is a four-on-four online multiplayer shooter that allows players to defend and attack using foam. An announcement trailer can be seen below. A statement about the game reads:
"In this game, foam is the ultimate resource. It can be used in multiple ways: To create slippery surfaces that players can use to surf around the arena at high speed; to build terrain, helping players defend from enemy attacks or creating high vantage points to take out opponents; and finally, to foam up the opposition and win the match."
Foamstars is currently in development with no planned release window just yet. More information about the title can be found on its website.