From the back of the North American Wii edition case
"BUILD your own custom ships and levels.
TRADE your creations with friends.
DESTROY wave after wave of enemy fighters in this frenetic geometric shooter!
A Shooter with Infinite Possibilities
Grow your ship to mammoth proportions by catching enemy debris!
Chaotic cooperative battles for up to 4 players.
Dynamic, easy-to-use editor offers endless game creation possibilities, including your own bosses!
Unlock 4 games including the original Tumiki Fighters!
Visit BlastWorksDepot.com to share and download new content from other players."