I got it on second try :) 300 075$ all trophies... If u wanna go 2600 feet just drill down too right before 2500 feet and use one boost to get over 2600. its smart to use some boost on your way down to 2500 also, then u have some extra time to collect valuable diamonds. If ur smart never use the boost in the first layers of soil, u drill fast there anyways. In the start of the game just uppgrade fuel tank, hull, and drill. Then start going as deep as u can collecting the more valuable stuff. Uppgrade uppgrade uppgrade, then u can start doing the harder trophies.
 "Escape The Impossibly Hard Room"){kind=icon}
 "cool game 3"){kind=icon}
 "Transformers Hidden Objects"){kind=icon}
 "SNiper Hunter 6"){kind=icon}
 "Creeper World Training Sim"){kind=icon}
 "MegaDrill"){kind=icon}
 "My Pet Protector"){kind=icon}
 "Medieval Rampage 2"){kind=icon}
 "Pixelvader"){kind=icon}
 "Pirate Defense"){kind=icon}
 "Learn to Fly"){kind=icon}