On Top Of The World Trophy in Skate 2

Go to SV Peak, very top of map, location unlocks upon completing all deathraces or you can try a different method. SV Peak is above Cougar Mountain, if you have "Cougar Mountain" in your Landmarks, teleport to it, turn around, and go upwards until you see a resting area, should take a minute or so, you should have a tunnel behind you and meet an archway to know you're in "Peak", from there you will see a pool you can drain (figuratively speaking) and all you have to do is just go there and keep pressing up on the or repeatedly tap to pick up speed, once near ledge, press to invert and trophy is yours.

Challenge Map => Locations>>Landmarks => SV Peak or Cougar Mountain.

Here's a video I made:

https://www.youtube.com/watch?v=DN3LGepJ96k