Some of the most challenging sections of the game involve riding a barrel at full speed through these ever - changing levels, and they're some of the most exciting sequences as well. (gamespot.com)
The App Developer Course will be the most challenging section of the course, but potentially the most rewarding. (edutopia.org)
These hidden areas may sometimes only be a chest with some extra cash, but other times they'll contain challenging sections with bigger discoveries. (wolfsgamingblog.com)