This will be achieved in FlatOut mode.
You will need to progress until you unlock challenge 30 - finnish pins.
To unlock this achievement you just have to knock over 25 pins exactly, no more no less (achieve gold medal)
Full throttle to the bottom of the ramp then release at about 35 degree angle and tap a as soon as you eject to gain more height. I dropped on to the front right pin and knocked them diagonally.
After that just try to make decent shots as the pins will stand where ever they last landed.