Actually the boost button was actually pretty awesome, though to be honest you could use it so often you don't have to do jack shit for one level, morally saying, this takes away the challenge.
Would like it if it was only to be used once you got the boost gauge at full level, that way it won't seem too repetitive after a bit
Would like it if it was only to be used once you got the boost gauge at full level, that way it won't seem too repetitive after a bit