"The bloons head up the gray path and when they reach the blue area is when you start losing lives, this is an expert track. You can only place towers on the stars and floating gray platforms. There is no water on this track. It comes with the BTD Future Pack."@en . . . "The bloons head up the gray path and when they reach the blue area is when you start losing lives, this is an expert track. You can only place towers on the stars and floating gray platforms. There is no water on this track. It comes with the BTD Future Pack."@en . . "Energy Core Track"@en . .