For any of the "Bluntslide the moster" / "50/50 TC's Rail" ect. all you have to do is at least have the trick that is required somewhere in your run, and the "gap" in the same run.
i.e: L.A. - you Bluntslide the rail, land into a manual then you 50/50 the monster will still get you the "Bluntslide the Monster" goal.
Win two gold medals in pro tour mode with any skater to unlock an alternate costume for them.
Complete the game the following number of times to unlock each character
X1 = Wolverine
X5 = Shaun Palmer
X7 = Mindy
complete the game the following amount of times to unlock each level.
X2 = The Zone
X4 = The Zone- Speed
X6 = The Zone- Rail
X8 = The Zone- Geo
X9 = The Zone- Fan
Complete the game 100% and get 2 gold medals with any skater and unlock his/her movie.
Complete all the goals in the game and get 2 gold medals (complete career mode with any skater) to unlock sponsor tour mode.