"unlocked" - key terms from Wikipedia

must be unlocked
must be unlocked	by completing
unlocked
unlocked	as a homie when
unlocked	as the player progresses
unlocked	by beating the game
unlocked	by completing
unlocked	by ultimate kombat
unlocked	for player use
unlocked	in samurai warriors story
unlocked	iphones
unlocked	on april
unlocked	with code