you push the cart till you see the tilt on the track then hop on
The mine cart ride is the final challenge at the Diamond Mine on Nabooti Island. The only thing you need to do is duck down when you are close to the ceiling, and jump up to avoid the boards immediately after that (repeats three times). (see related question)
All you need to do in the Diamond Mine cart is to duck down into the cart when the ceiling gets close, then jump over the wooden barriers (it says "Jump" a little late).
In the Diamond Mine on Nabooti Island, you have to DUCK DOWN into the cart when the ceiling is low, and JUMP over the rocks that stick up. You should jump no later than the time you see the "jump" sign.
you push the cart then jump on it
On the mine carts you duck jump duck jump duck jump then stay
Once you are in the mine cart, you have to "duck down" when the cart goes up close to the ceiling, then JUMP when you come to a rock sticking up (you should jump "before" you reach the sign that says "jump"). This repeats three times. (see related question)
There are three sets : 1 duck and 1 jump each with the same spacing.
Dodge the mine carts, go down the elevator, blast the rock and the wall, ride the mine cart, and get the White Jewel from the diamond pile. (see related question)
In the Diamond Mine, the final stage is a cart ride through the mine. When the track gets close to the ceiling, duck down into the cart. When you come to a board sticking out over the tracks, jump it. (You may have to jump before you see the sign that says "jump".) After three sets of ducking and jumping, you reach the end of the cart track. Use the magnifier at the bottom right of the screen to examine the diamonds, and find the one that has the triangular mark identifying the White Jewel of the Nabooti. (see related question)
You don't. When the carts are plummeting down the tracks outside the mine, jump over each one until you can reach the elevator at the top of the incline. In the mine, you have to alternately duck down or jump the barrier when you are in the mine cart.
In the final area of the Diamond Mine, DUCK DOWN when the mine cart gets close to the ceiling, and JUMP when there is a rock in your way (there are three of each). You should jump *before* you reach the sign that says Jump.
You have to dodge one, then jump from one cart to another until you reach the top. Then wait for one to pass and quickly duck into the mine.