To do the weird boat Glitch you must go to take a ride and go to nice, go down to vehicle and go left until u get to the 2nd boat over. It doesnt matter which location you choose (i dont think) then head out to the ocean farther and keep picking up speed.(dont go to far or it will restet you). Then when you are going fast quickly press x and jump foward it should either take your health down and shoot you way far back or it will just kill you.