Sonics levels were fantastic.
How about a sonic game that ditches silly werehog/treasure hunting/mech robots/big cat ect missions and just focuses on sonic.
If the game is only half the length due to only having sonic missions then simply sell it at retail for a cheaper price.
Awesome sonic game with sonic only levels thats half the length but also half the price
or
Full length game that has awesome sonic levels but also some pointless sideshow gimmick?
I choose the former.