Try to open the door in 'First Cave'

Refuse Balrogs offer in 'Shack'

Read a Sign that has been left by Tetsuzou Kamadani in 'Hermit Gunsmith'

Let Curly die in 'Waterway'

Congrats on reaching the end in 'Balcony'

Earn a Heartful Reward in 'The King's Table'

Read a secret sign in 'Blood Stained Sanctuary - B1'

Destroy all 4 Statues in 'Statue Chamber '

Obtain the Snake

Obtain the Polar Star

Obtain the Fireball

Obtain the Machine Gun

Obtain the Missile Launcher

Obtain the Bubbline

Obtain the Blade

Obtain the Super Missile

Obtain the Nemesis

Obtain the Spur

Defeat Balrog in Shack

Defeat Igor in Egg Corridor

Defeat Balrog in Power Supply Room

Defeat Balfrog in Gum

Defeat Curly in Sand Zone Residence

Defeat Omega in Sand Zone

Defeat Toroko + in Warehouse

Defeat Puu Black in Clinic Ruins

Defeat Monster X in Labyrinth W

Defeat Balrog in Boulder Chamber

Defeat Core in Core

Defeat Ironhead in Main Artery

Defeat Sisters in Egg Observation Room?

Defeat Ma Pignon in Storage

Defeat Red Ogre in Last Cave (Hidden)

Defeat Misery in Throne Room

Defeat Doctor in The King's Table

Defeat Undead Core in Black Space

Obtain 'Chako's Rouge'

Obtain 'Curly's Panties'

Obtain 'Life Pot'

Obtain 'Map System'

Obtain 'Arms Barrier'

Obtain 'Turbocharge'

Obtain 'Whimsical Star'

Obtain 'Booster v0.8'

Obtain 'Booster v2.0'

Obtain 'Tow Rope'

Obtain 'Iron Bond'

Obtain '290 Counter'

Complete 'Final Cave' with Booster v0.8

Defeat Balrog without jumping

Defeat Igor while only attacking him when he is moving

Defeat Balrog while only attacking him when he is in the air

Defeat Balfrog without killing any of the frogs

Defeat Curly without hurting any of the Mimiga children

Defeat Omega without destroying any of their projectiles

Defeat Toroko + without destroying any of the flowers

Defeat Puu Black in less than 2 cycles

Defeat Monster X while only using Lv 1 Weapons

Defeat Balrog while only firing shots midair

Defeat Core without jumping more than 10 times

Defeat the Ironhead without taking damage and obtain the 'Alien Medal'

Defeat Sisters while only staying on the small platform in the middle

Obtain the 'Medal of the Red Ogre'

Defeat Misery without missing any shots

Defeat Doctor without taking damage

Defeat Undead Core without hurting Misery or Sue

Pick up Curly in 'Blood Stained Sanctuary - B1'

Defeat Heavy Press in 'Blood Stained Sanctuary - B3'

Achieve the Bad End

Achieve the Normal End

Achieve the Normal End while wearing the Mimiga Mask

Achieve the Best End

Achieve the Best End while carrying Mister Little

Complete a full run during Halloween season and achieve any ending

Complete a full run during Christmas season and achieve any ending

Achieve any Ending in under an hour

Achieve the Normal Ending on Easy or Normal Difficulty with all possible Health and Missile Upgrades

Achieve the Best Ending on Easy or Normal Difficulty with all possible Health and Missile Upgrades

Achieve the Normal Ending on Hard Difficulty

Achieve the Best Ending on Hard Difficulty

Obtain all Life Capsule and max out your health

Obtain all Missile Expansion and max out your ammunition

First obtain the Missile Launcher in 'Blood Stained Sanctuary'

Complete the Time Attack for the first time

Complete the Time Attack in under 6 minutes

Complete the Time Attack in under 5 minutes

Complete the Time Attack in under 4 minutes

Complete the Time Attack in under 3 minutes

Complete the Time Attack while only using the Snake

Complete the Time Attack while only using the Polar Star

Complete the Time Attack while only using the Fireball

Complete the Time Attack while only using the Machine Gun

Complete the Time Attack while only using the Bubbline

Complete the Time Attack while only using the Blade

Complete the Time Attack while only using the Super Missile

Complete the Time Attack while only using the Nemesis

Complete the Time Attack while only using the Spur

Defeat the Red Ogre without taking damage