“You can only buy this game in some big bundle you don’t want” is absolutely not “a good way”.
There is no market confusion. But if you want to play make believe that there is, rename the old one “2011 Sonic Generations” so it’s more obvious. (Obvious you won’t, because the goal is to pretend a slightly modified re-listing is a new game worth new game prices, but de-listing a game is almost always exploitive one way or another.)
“You can only buy this game in some big bundle you don’t want” is absolutely not “a good way”.
There is no market confusion. But if you want to play make believe that there is, rename the old one “2011 Sonic Generations” so it’s more obvious. (Obvious you won’t, because the goal is to pretend a slightly modified re-listing is a new game worth new game prices, but de-listing a game is almost always exploitive one way or another.)