Taken from an earlier post:
I see a lot of confusion about this everywhere. 100% is not 100% of all things, it's 100% of some thing(s). Think about it, please.
Even if you had your way, you wouldn't be getting 100% of everything. You would already be making some decisions not to include things. Do you think every single enemy should be killed at least once? Do you think every pixel of land should be stepped on? Do you think the game clock should be maxed out? That would make for a great speedrun! If you disagree with maxing out game clock, then you also agree that it's 100% of some things, just not necessarily the ones you want.
Now let's think more in detail about which things. Do you know why the 100% category exists? In some games like Metroid, the game itself tracks the percentages. There is no debate there. But people would like to make similar runs for games that don't define 100%, so for SDA we have to come up with definitions. Ideally, the definition we use would make sense, i.e. something that perhaps the developers themselves would have chosen.
Think about 100% categories included with different games. For Metroid, it's 100% items collected. If Super Metroid didn't track itself, some people would say "all items, all map completed, saving the animals, etc etc" when the developers themselves intended 100% items collected. You can go down the line and look at the % definitions for all sorts of games and see that 100% is defined almost always as 100% of something. I feel like 2-3 items is as much as you should ever have for a game, which is a compromise, since honestly I feel 1 item is the correct number really.
Future Runs:
low%
Bouncer: no special moves, upgrades
Contra III: no items
Contra: Hard Corps: no items
Castlevania Bloodlines: no subweapons, powerups, food, autokill items
Castlevania Rondo of Blood: game-defined (56%)
Final Fantasy 1 (only PS1 version): min items (Lenophis says it's either 5 or 6%)
Kirby's Adventure: no switches (71%?)
Kirby Nightmare in Dreamland: no switches (VG says the game tracks and it's ~62%)
Mega Man 7: min items (rush coil and boss weapons are forced by the game)
Mega Man 8: no bolts
Mega Man X2: no items
Mega Man X4: no items
Mega Man X5: no items, boss weapons
Mega Man X6: no items, reploids rescued, min boss weapons (1)
Metroid II: 3 items (bomb, ice beam and an energy tank. Apparently it's impossible to survive without an energy tank)
Paper Mario: min badges (Power Jump only), no super blocks
Super Mario World: no Yoshi, powerups
Zelda Link to the Past: min hearts, items
Zelda Majora's Mask: min permanent items (don't disappear after Song of Time... not sure what the number value is atm)
100%
Actraiser: max population (4652)
Bouncer: game-defined (100%) -- MatrixTN isn't sure if it really is game-defined though
Castlevania Symphony of the Night: all relics, best ending (Alucard) or all bosses (Richter, Maria)
Commandos Strike Force: all objectives, 5 stars (individual levels)
Cool Spot: all cool points and U-N-C-O-L-A (MatrixTN says he isn't sure about this)
Crystalis: all permanent items
Enclave: all gold
Faxanadu: all equipment, accessories, magic
Final Fantasy 6: all characters, espers (except Odin)
GUN: all missions, gold, poker matches, upgrades
Kirby and the Amazing Mirror: game-defined (100%)
Legend of Mana: all quests
Mega Man 8: all bolts (40)
Mega Man X2: all items, Zero's parts
Mega Man X6: all items, Reploids rescued
Mega Man X7: all items, Reploids rescued
Mega Man X8: game-defined (100%)
Mega Man Zero: all cyber elves
Mega Man Zero 2 100% - 78 (or 77) Elves, 10 Forms, 10 EX Skills, 2 SubTanks
Mega Man Zero 3 100% - 180 Disks, 12 Ex Skills, 2 SubTanks.
Mega Man Zero 4 100% - 2 pick up SubTanks, 8 EX Skills. (Parts dropped by enemies maybe too random, it would take hours to make all the parts.)
Metal Slug: all prisoners
Metal Slug 2: all prisoners
Metal Slug X: all prisoners
Metroid Prime: Hunters: All pickups (game counts scans, which defies metroid tradition)
Oddworld: Abe's Oddysee: best ending (Rescue all 100 mudokons)
Oddworld: Abe's Exoddus: best ending (Rescue all 300 mudokons)
Ogre Battle: max characters (no Galf), all stages, best ending
Paper Mario: all badges, super blocks
Paper Mario TTYD: all badges, shine sprites
Pokemon Red/Blue: all pokemon, badges
Prince of Persia (PS3/360): All 1001 Light seeds
Radiata Stories: all characters
Rayman 2: game-defined (100%)
Shadow Man: all dark souls, Cadeaux, items
Simpsons Hit & Run: game-defined (100%)
Sly 2 and 3: game-defined (100%, everything unlocked)
Sonic 1: all emeralds
Sonic 2: all emeralds
Sonic 3: all emeralds, super emeralds
Valkyrie Profile: all dungeons
Valkyrie Profile 2: all dungeons (includes Seraphic Gate)
Wario Land: best ending
Zelda: The Wind Waker, The Legend of: All hearts, all items (figurines and charts not included), all upgrades, all songs, and hurricane spin