On the mine car rolling through the Diamond Mines, duck down when you get close to the roof, and jump over any rock that sticks up (there's a warning sign).
On the mine carts you duck jump duck jump duck jump then stay
right click it
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).
By getting near to it and pressing the "ride" button.
ride the mine game and cut the cart
You should jump over the carts in a half-squared shape,then enter where the mine carts are coming from,you could just drop.
Jump up by the cowgirl, then jump up till you get on the train tracks. Run right and you should see a rope dangling down. Climb up and use the pea shooter to get the mine key from the fat canary. Use the mine key on the door with a lock on it, and then you'll be in the mine. You will ride the mine cart for a LONG time. Shoot the red switched to avoid falling off the cart. When you are at the end, grab the blue tulip. Then a tremor will happen. But there is a rope above you. Climb out.
you push the cart then jump on it
You ride in a cart and try not to crash as you head to the mine. Get extra coins for doing insane tricks.
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)
To get in a mine cart you just left click the cart to get in. To get you you left click the cart again.
Left click the mine cart.