So, recently, it has come to my attention during a playthrough that Blitzkrieg Blizzard (4-15) has 21 pixels instead of the ordinary 20. The All Pixels speedrun will NOT require you to collect 21 pixels in that level.

Update on this: I just found out that when you exit the game and reload it, the game corrects this pixel number to 20. However, 4-15 will still not require 21.

Just to be safe, I renamed All Pixels to 100%, because the achievement for getting all the pixels in the game on Steam is for 1200 pixels. The category requirement will now be a gold star on every level, unless you get the aforementioned 21st pixel in 4-15.

I do not consider the Challenge Mode to be added to 100%, as the "Pixel Perfect" Steam Achievement requires 1200 and the image has 100% on it. If you'd like to change that, I'd recommend changing 100% to "All Gold Stars" as "All Pixels" implies 1201 pixels, which is over the amount recognizes is in the game (the achievement requires 1200 and also the world select shows 361/360 if collected until you reset the game)

Now actually, this leads to another glitch I had with 100%, and that was, I don't know if it was a side-effect for collecting 21 pixels, but when I tried to play the Challenge Levels the first time I tried, the game wouldn't even let me into the World 4 Challenge Levels. That would basically register 1 category, and if 100% requires them, 2 categories, unfinishable runs.

It also seems like you're ignoring games with both content that doesn't add to the 100% (like the Tokens in Pac-Man World 2) and games with over 100% completion (basically any Donkey Kong Country game)

The best example of what I'm trying to defend is showcased in Donkey Kong Country 3. In that game, there are two endings. The normal ending is you saving Donkey Kong and Diddy Kong. Collecting all the bonuses in the levels before this ending will net you 100%. However, if you get the secret ending by beating all the Krematoa levels and saving all the Banana Birds, it grants you 103%. The game does this because it's impossible in the circumstances of the game to get the secret ending before the normal ending. Just like how Challenge Mode isn't unlocked until you beat the game, regardless of how many gold stars you have.;

On another note that just came into my head, a gold star isn't granted on 4-15 unless you get 20, 21 doesn't grant you a gold star. And all pixels would signify that 1201 is required. So that would bring up a problem as well, because there seems to be no other name for the category. The only option with that circumstance would be to split up all gold stars and all pixels, which would be an absolutely stupid thing to do.

My only problem is, what's a category name that clears up exactly what the category is looking for. Once we find that, we can switch it. For now, I'm just defending why that's 100%