Its more of a budget matter than anything else.Lets say you an indie developer borrows Metroid.Unless they make a 2D Metroid, everyone nowadays expects a game at the same size and scope of the Prime games, and thats a budget and manpower an indie developer dont have.
Even for games like F Zero that could be doable for an indie to develop, the ammount of effort into the game would be higher than in a game like Fast RMX, because they would need to make charachters(and assets for them), have some form of narrative, a campaign of some sort, etc.In other words, alot more work.Thats why I think it wouldnt work.
My (locked) thread about how difficulty should be a decision for the developers, not the gamers.
https://gamrconnect.vgchartz.com/thread.php?id=241866&page=1
