What my friend should buy>?

I consider these have to much obstacles ..i am just lvl 2 where you use boat and is about colelct 300 coins is kind of to much of rocks to dodge and to low lifes i mean i bet isnt last level where you use boat and coins probably will be more so how we can do with 2 lifes ..and so many rocks...you can dodge true but sometimes you hit without want ......