I'd normally agree that seeing the credits count as "beating the game," and 100% is different. However, there are exceptions where seeing the credits shouldn't really count as beating the game. For example, if a game has multiple campaigns and it shows the credits after each one, you should still have to beat them all. A bunch of Sonic games would count for this. However, the campaigns need to be significantly different. So for Sonic 3 & Knuckles, I think you haven't really beaten the game until you've beaten as Knuckles, but you don't need to beat it as Tails Alone, as that's too similar to Sonic's campaign.
Sonic Adventure 2's Story Mode has three endings, but I think even that is only a small portion of the game. There is simply so much extra content in that game that it makes the Story Mode feel like a training mode. I contend that a lot of people who say they don't like the game haven't even tried the Extra Mode, which is where most of the content really is. I almost feel like saying you haven't beaten the game until you beat Extra Mode. But I know everyone else would disagree with me and say that is only 100% completion.
OP has a pic of Castlevania, and that one is interesting. The original game loops, but I can't bring myself to say that you need to beat the second loop. That's more like hard mode, and would be completionism, akin to 100%ing it. Castlevania Chronicles loops like eight times and gets harder each time. I can't even imagine anyone ever doing that because it's so hard even on the first loop.
Castlevania III has four characters, four endings, and two significantly different paths. Characters are separated by paths, so Alucard basically has the hardest path. I'd say to really say you "beat" it you have to do both paths, so you need to beat the game with both Sypha and Alucard. Beating the game with Grant basically follows the same path as Sypha, but it's harder, so if you do that, it counts as beating it with Sypha but not Alucard. You can also beat both paths with Trevor alone, and I suppose if you want to 100% the game, you'll need to do that, but that's insanely hard. Basically, Sypha is Easy Mode, Alucard is Normal, Grant is Hard, Trevor alone (Sypha's path) is Super Hard, and Trevor alone (Alucard's path) is Super Duper Hard. I think you only need to beat Easy and Normal to count as having "beaten the game."
Symphony of the Night famously has a bad end that's only halfway through the game. That shouldn't count. You need to get the good ending for it to count. But it also has a percentage counter. Maxing out the percentage counter is 100%ing the game. And also there are unlockable characters, Richter and two different versions of Maria (depending on if you're playing the Saturn or PSP version). Obviously that's not required to say you "beat" the game.
Many later Castlevania games then follow this formula, but I would say that a couple of the extra modes count, especially Julius Mode in Dawn of Sorrow. That one feels different enough that I think you're really missing out if you don't beat it. It has its own story and everything. Not canon, but still. Portrait of Ruin has Sisters Mode, which is canon, but it's fucking boring so I have a hard time saying you're missing much by not playing it. It's not much more interesting than Richter Mode.
Also, there are things like fighting games where clearly you haven't beaten it until you've done the Arcade Mode with every character. There are variants of this in things like car combat games, too. I don't care if you see the credits in Twisted Metal, you have to do it as every character or it doesn't count. It would count in a racing game, though. You don't need to beat every cup in Mario Kart with every character, you just need to do it once.
>>1566390
>The game has a 90% completion status
What exactly does this mean? Not all games have an actual number, and how you count completion could be different. That's kind of what the thread is about.