OlliOlli2: XL Edition

You can do this on the first pro level "Olliwood Bowl". There are no launches in this level, but that doesn't seem to matter. You will just need to make sure every grind and landing is perfect. If you have already learned how to do manual and are attempting them for combos then you will need to ensure you get perfect manuals also.

I did one attempt where I did manuals and got everything perfect except a couple of manuals were ruled only as sick and I did not get the achievement. I then did the level again with no manuals and it popped.