Monster Jam: Path of Destruction

I discovered that you can do tricks in the test mode and have them count toward achievements. So with that there is not time constraint your held to.

First go into Diggers Dungeon and select any truck but do not press (A) to accept instead press (Y) to enter "test" mode.

Once in test mode you will be put into the Minnesota Freestyle arena. Directly in front of you will be a main ramp with two side ramps. To the right will be an area along the wall that has "Grinder" spray painted on it, here you can easily do back flips or barrel rolls. You have unlimited time, so do not worry about having the 90 sec freestyle limit or respawns.

Here is a list of the tricks and how to perform each.

Big Save: when on your side turn both wheels towards the sky and hit (LB) to boost out.
Wheelie: Hold (LS) down and boost (LB) while stationary to pop a wheelie. NOTE: This is most easily done at the very beginning of any event.
Slap Wheelie: first you need to hit a standard ramp then hold up on the (LS) to push your truck forward so that you land nose first on your front wheels. Once your front wheels bounce up quicly boost (LB) and hold (LS) down.
Sky Wheelie: when you hit a ramp you need to hold down on the (LS) to get vertical. The trick is to finese pushing up and down on the (LS) once airborne to hold your truck strait up and down.
Stoppie: perform the moves for a slap wheelie but once you land on your front wheel quickly bracke (LT) and hold it for a moment.
Pogo: Essentially perform a sky wheelie but ensure that you have your nose far enough forward to land on your tires not the rear frame of the truck. If you hit the frame it will not count. This is also easiest to perform on a standard ramp with no platue on the top of it.
Donut: Hold both direction sticks in the same direction and gas it. It will take a moment to get the truck spinning.
Cyclone: Hold both the (LS) and (RS) just like a donut in the same direction but hold (LB) boost to spin the truck. The cyclone is nothing more than a super tight, fast donut.
(about donuts and cyclones try to quickly go from one to the other by entering a donut then a cyclone the donut will refill your boost and you can basically do infinate chains)
Back Flip: You need to hit a steep ramp or half pipe while holding down on the (LS) and hitting boost (LB). The key is that the ramp has to end in a near or perfect vertical to complete.
Front Flip: Done exactly like a backflip but you hold up instead of down on the (LS). I found these easiest to do when you are going off a high ramp Front flips generally tend to be difficult to do.
Barrel Roll: You need to hit a ramp with just one side of your tires. As you go up the ramp boost (LB) to spin your truck in the air. (NOTE: the Oakland freestlye has a ramp specific for this)
Flat Spin: Boost up a standard ramp, as you reach the top push both direction buttons (LS) and (RS) in the same direction. Generally you need full speed to do this, the key is speed and height, if you fail to do a full rotation it wont count.

I did it in a freestyle event, don't remember the Stadium name but it's the one with the half pipe ramp at the beginning and a wall ramp straight ahead. It's a good arena for this achievement because you can do two hard tricks at the very beginning (Barrel Roll on a half pipe ramp and Back Flip on a wall ramp).

I can also confirm that you NOT have to do this in a freestyle event. It might be a lot easier to do this in a race. A friend of mine did it in a race event so it definitely work.