go on playstation store and write in search skate 3

It is not available on the PlayStation Store.

Of course it is opinion but a majority of people say Skate 1 is better. On Skate 1 you can get more board sponsors and the physics of skating are more realistic on Skate 1. However Skate 1 slightly lacks the quality of the graphics that Skate 2 has in store. Skate 1 is cheaper than Skate 2 as it was an earlier release. Skate 1 I would say is the better game but that is a matter of opinion.

how do you do a tailhawk in skate 3

both