Legend of Zelda: Breath of the Wild

But not like you think. I was fairly early in the game, and I was just treasure hunting in the castle to get some good gear before I continued on (good swords and bows that respawn regularly but break over time). Also, if you've never played it, the game is not entirely linear, you have four main powers you can gain from fighting and freeing four spirits in different zones, as well as shrines for additional powers and health. But you could spawn at the beginning of the game, do the initial questline to get the paraglider, and then go straight to the castle to fight the BBEG. And you'd die, but you could try!

So I was treasure hunting and I accidentally fell down a hole and ended up fighting the final boss. And then won. And then had to reset to the previous save before falling in. I spent the rest of the game thinking "I don't actually need this to win, it's all for overkill." And it was. So much overkill. It really wasn't fair at all. The separate storylines were really good and worth doing anyway, though. Beating the game was just kind of a fight tacked on to the end of a fantastic story.