Who the FUCK cares that if any game has tons of/hardass challenges or not? Sonic 06's Soleanna missions were hard. Sonic Adventure's missions weren't even all that hard. Sonic Heroes's Bullet Station Team Chaotix's EXTRA mission is the hardest Team mission to do ever on one level. There can other things fun about video games too.
And oh, how nice of you to have sucky physics that ruins the missions Sonic 06 ( Sarcasm ). Atleast I've got all S ranks in missions. And I think that Sonic Lost World would be twice as more the fun than the other Sonic games that came out.