Final Fantasy VII

Escape from the Sector 1 Reactor with 7:45 or more remaining.

Steal a kid's life-savings.

Don’t let Aerith fight at Sector 5 Church

Do at least 20 squats at the gym.

Get Don Corneo to choose Cloud over the two females.

Use a grenade on Rufus.

Escape from Midgar.

Get through Cloud's flashback with Sephiroth.

Get the fat chocobo instead of the normal chocobo when using the Choco_Mog summon.

Beat the Midgar Zolom before viewing the scene with the dead Zolom.

Have Yuffie join your party.

Beat Bottomswell using nothing but limit breaks.

Get more than 50% ratings in the Shinra march.

Get Rufus' mood above 100 in the Junon sendoff.

Loot the Cokatolis nest on Mt. Corel.

Earn your freedom from Corel Prison.

Have Vincent join your party.

Obtain every Turtle's Paradise poster and obtain your reward.

Complete the Stolen Materia sidequest.

Go on a date with Barret in the Gold Saucer.

Complete Battle Square with Aerith.

Obtain the Bahamut Materia.

Complete the Temple of the Ancients using magic only, initial equipment, without healing at an inn (full rules in comments).

Defeat Jenova LIFE.

View a hidden scene with Ilfana and Professor Gast.

Obtain everything in the Great Glacier.

Kill a Marlboro without any status resistances after it's used Bad Breath on you.

Defeat Jenova DEATH before her 4th turn.

Get through the events on the Northern Crater

Win the slap fight against Scarlet

View the Xenogears reference.

Complete every optional Fort Condor mission.

Steal a Cursed Ring from Ultimate Weapon

Find out what really happened in Nibelheim.

Defeat both Turks in Gongaga.

Learn Cosmo Memory.

Learn All Creation.

Learn Great Gospel.

Learn Catastrophe.

Visit the church on disc 2 to see a special someone.

Obtain Tifa's ultimate weapon.

Learn Final Heaven.

Get 7 "Yeah!"s on Tifa's limit break.

Solo Carry Armor with any character (other chars must be dead for the whole battle).

Obtain Cid's ultimate weapon.

Learn Highwind.

Obtain Yuffie's ultimate weapon.

Obtain Vincent's ultimate weapon.

Learn Chaos.

Obtain all 4 Huge Materias.(Must have them all in inventory before dropping off at Cosmo Canyon)

Master your first materia.

Defeat the Diamond Weapon.

Defeat Diamond Weapon using nothing but limits.

Learn Slots.

Learn what happened to Don Corneo.

Defeat all 3 Turks at Midgar

Obtain Cait Sith's ultimate weapon.

Obtain Barret's ultimate weapon

Defeat Hojo.

Solo Hojo while only using Vincent's Chaos limit break.

View a hidden scene with Tifa at the end of disc 2.

Finish a battle with Cait Sith's Game Over technique.

Obtain Red XIII's ultimate weapon.

View the flashback that shows Cloud escaping Nibelheim.

Complete the first phase of the Ultimate Weapon fight in one battle.

Obtain Cloud's ultimate weapon.

Complete the Ancient Forest.

Complete the Mog's House minigame.

Win against The Wrestler in the Arm Wrestling minigame.

Score 10,050 points or more in G-Bike at the Gold Saucer.

Double your GP prize in the Super Dunk minigame.

Complete the Crazy Course in the Snowboarding minigame with 70 or more points.

Complete the Beginner Course in the Snowboarding minigame with 90 or more points.

Complete the Expert Course in the Snowboarding minigame with 90 or more points.

Complete the Crazy Course in the Snowboarding minigame with 90 or more points.

Complete the Undersea Mako Reactor Battle in Torpedo Attack.

Complete Level 1 of Torpedo Attack.

Complete Level 2 of Torpedo Attack.

Complete Level 3 of Torpedo Attack.

Complete Level 4 of Torpedo Attack.

Obtain 5000 or more points in the Speed Square.

Learn Omnislash.

Complete the special battle at Battle Square.

Buy the house at Costa del Sol.

Beat Joe's chocobo, Teioh in a race.

Complete the Materia Caves quest.

Obtain a Master Materia through materia fusion.

Get any character to 7777 HP in battle.

Do 9999 points of damage to an enemy.

Obtain every enemy skill on one materia.

Defeat the Ruby Weapon.

Defeat the Emerald Weapon.

Complete the Kalm Traveler quest.

Defeat both forms of Sephiroth at full power without using Knights of the Round or Game Over.

Complete the game.

Complete the game without anyone surpassing level 28.

Beat Palmer using nothing but limit breaks (Game Over banned).

Defeat the Materia Keeper without him healing himself using nothing but items.

Successfully escape the #1 Reactor explosion

Obtain all the items in the #1 Reactor and the surrounding streets

Successfully traverse and escape the Sector 5 train while collecting all items and not leaving anything behind

Meet Aeris

Obtain all the items of Sector 5

Meet Tifa

Obtain the Bikini Briefs at the Honey Bee Inn

Obtain the Lingerie at the Honey Bee Inn

Defeat Scotch and his goons at Don's Mansion

Encounter an Eligor and steal a Striking Staff

Obtain all the items of the Sector 7 Slums and the Train Graveyard

Escape from the Sector 7 Slums

Obtain all the items of Sector 6

Obtain a Turbo Ether from a kid with aspirations

Sneak into the Shinra Headquarters without causing a ruckus

Encounter a SOLDIER:3rd and steal a Hardedge

Break into the Shinra Headquarters

Steal from and defeat both Turks in the Gelnika

Defeat Aps

Clear the 60th floor of the Shinra Headquarters without entering a single battle

Correctly guess Mayor Domino's word on the first try without help, and obtain your reward (don't leave floor)

Meet Red XIII

Obtain the Enemy Skill Materia in Shinra Headquarters

See a local landmark in Sector 7 with a stranger

Obtain all the Keycards in the Shinra Headquarters

Defeat Hundred and Heli Gunner

Defeat both Rufus and Dark Nation

Encounter a Custom Sweeper and steal an Atomic Scissors

Obtain the Orthopedic Underwear

Catch a Chocobo

Encounter a Madouge and steal a Grand Glove

Encounter a Formula and steal a Boomerang

Save Priscilla and obtain a gift and new direction

Watch an ad at the Shinra Headquarters

Face the enemy at Fort Condor on the field of battle and win

Defeat Jenova BIRTH

Happen upon a reunion between Tifa and Johnny at Costa Del Sol

Happen upon Hojo at Costa Del Sol

Encounter a Bagnadrana and steal a Diamond Pin

Meet Cait Sith

Learn the truth of Red XIII's father

Defeat Lost Number and claim its reward

Be invited to the Reunion, and left a parting gift

Encounter a Dragon on Mt. Nibel and steal a Gold Armlet

Share in an old man's hobby in Rocket Town and get a gift

Recruit Cid and obtain his trusty seafaring plane

Complete the Pagoda sidequest

Entertain Dio by clearing the Battle Square guantlet and claim your rewards

Obtain the Keystone

Obtain the Elixir in your Ghost Hotel bedroom

Resolve to find Aeris after the events of the Temple of the Ancients

Obtain the Red Submarine

Dodge Elena's punch

Steal a Protect Ring from Schizo

Escape from Junon on a new set of wings

Obtain all non-mastered Elemental materia

Obtain all Enemy Skill materia

Obtain all non-purchased Chocobo-dropped or related materia

Obtain a Curse Ring from the Mideel Weapon shopkeep

Save North Corel and obtain the Huge Materia

Protect Fort Condor and obtain the Huge Materia

Obtain the Huge Materia from the sunken red submarine

Obtain all the Good treasure of Bone Village

Obtain the Key to the Ancients

Obtain the Huge Materia inside Shinra no. 26

Obtain the Bahamut Zero materia in Cosmo Canyon

Race a Chocobo to Rank S

Breed a Blue Chocobo

Breed a Green Chocobo

Breed a Black Chocobo

Breed a Gold Chocobo

Win 10 Chocobo races at the S rank level and receive your prizes

Finish in 1st place on the Long Route of the Chocobo Race with full stamina

Obtain the Sprint Shoes from an impressed fan at the Battle Square

Purchase the Sneak Glove

Defeat the Guard Scorpion without triggering its counterattack

Defeat the Air Buster before it has a chance to have a turn

Defeat Gi Nattak without using a Phoenix Down, X-Potion, Elixir, or the Life spell

Defeat Lost Number in its physical form without the use of paralysis

Defeat Rapps without using limit breaks

Clear the Pagoda sidequest, in one session and without leaving the building, on Disc 1

Stop the train from crashing into North Corel with at least 4:00 minutes remaining

Morph a Cactuer and obtain a Tetra Elemental

Morph a Master Tonberry and obtain a Ribbon

Obtain all the items of Kalm, the Chocobo Farm, and the Mythril Mine

Obtain all the items in the Shinra Headquarters and surrounding grounds

Obtain all the treasure of Junon, the Reactor, the Gelnica, and the Cargo Ship

Obtain all the treasure of Mt. Corel, North Corel, and the Gold Saucer

Obtain all the treasure of Gongaga, Cosmo Canyon, and the Gi Cave

Obtain all the treasure of Nibelheim, Shinra Mansion, Mt. Nibel, and Rocket Town

Master every type of Independent materia (equip all on non-secret characters)

Master every type of Command materia (equip all on non-secret characters)

Master every type of Support materia (equip all on non-secret characters)

Master every type of Magic materia (equip all on non-secret characters)

Master every type of Summon materia (equip all on non-secret characters)

Obtain all the treasure of Wutai and its area, the Temple of the Ancients, and Mideel

Obtain all the treasure of the Corral Valley, the Forgotten City, the Icicle Inn, and the Gaea Cliffs

Obtain all the treasure of the Whirlwind Maze and the Northern Crater

Defeat Emerald Weapon without the use of Underwater, Knights of the Round, Absorbing, Final Attack, Counter & Mime materias (no Lucky 7s, Game Over, or ultimate weapons)

Defeat Ruby Weapon without the use of Knights of the Round, Absorbing, Hades, Final Attack, Counter & Mime materias or Dazers (no Lucky 7s or Game Over)

Escape from Midgar with nobody surpassing level 10.

Arrive at Costa Del Sol with nobody surpassing level 13.

Escape from Rocket Town with nobody surpassing level 18.

Complete the events at the City of the Ancients with nobody surpassing level 21.

Complete the events at the Northern Crater with nobody surpassing level 24.

Find out what really happened in Nibelheim with nobody surpassing level 25.

Clear all Huge Materia missions with nobody surpassing level 26.

Find out how to stop the Black Materia with nobody surpassing level 29.

Finish the raid on Shinra with nobody surpassing level 31.

Beat the game with nobody surpassing level 35.