How much take time to make SuperMario type game on Unity2D ?

Question

How much take time to make SuperMario type game on Unity2D ?

Answer 1

It all depends on your scope and experience. If you're just making a basic jumper, it could take 3 minutes. Add enemies and level design, an hour. Many levels and powerups and other features, days to months to years.
Starting simple is fast. But the more you add on, the more you have to polish, the longer it takes. You could make super mario in 10 minutes with the right preparation and assets. But making a totally new super mario by yourself could take years or even a lifetime depending on how big you want it.