hello, i have been playing 2902 without extra boost. i can get to the bottom but there is always some reason not able to win unless i use a boost . i know all levels are suppose to be able to pass without boost. but i feel this level is not. the first time i passed it i had to use extra boost. i am now playing it for 3 days just trying to pass it without boost. i really mean playing it almost 8 hours everyday . i wish the person who made this level could show me how to pass without boost.