Here is the full list of all 100 Picayune Dreams achievements.
See the true ending.
Beat Overdrive 3.
Upgrade the Plasma Lamp to Level 8.
Upgrade the Overcharged Engine to Level 8.
Kill 100,000 enemies.
Upgrade 500 times.
Reach 30 Mortality.
Upgrade the Pleonexic Crown to Level 8.
Upgrade the Frost Globe to Level 8.
Upgrade the Wicked Walkman to Level 8.
Upgrade the Defense Turret to Level 8.
Upgrade the Fire Lighter to Level 8.
Reach Skill Level 25.
Beat the game with Core, UltraBuster, Eye2 and Hunter's Bow.
Beat Overdrive 2.
Beat a run with 200%+ Pickup Size.
Kill 25 Bosses.
Reach Skill Level 20.
Upgrade the Energizing Battery to Level 8.
Upgrade the Horns to Level 8.
Upgrade the Hydrocillator to Level 8.
Upgrade the Shrapnel Shells to Level 8.
RIP.
Upgrade the Flame Thrower to Level 8.
Upgrade the Soul Spear to Level 8.
Upgrade the Angel Wings to Level 8.
Upgrade the Digiwatch to Level 8.
Upgrade the Volatile C4 to Level 8.
Upgrade the Telecom to Level 8.
Beat Overdrive 1.
Beat a run without using Halos or IVBags.
Defeat the Ghost.
See all of the memories.
Kill 50,000 enemies.
Find 10 Chain Grenades.
Find 10 Floppies.
Find 10 Drills.
Reach Skill Level 15.
Upgrade the Mask of Plague to Level 8.
Upgrade the Legsaw to Level 8.
Upgrade the Yoyo Rack to Level 8.
Upgrade the Static Satellite to Level 8.
Upgrade the Halo to Level 8.
Upgrade the Strike Call to Level 8.
Upgrade the Slime Spike to Level 8.
Beat the game.
Beat a run without upgrading CORE.
Defeat Picayune.
Defeat the Demon.
Defeat Yuki.
Kill 25,000 enemies.
Find 10 Blackholes.
Reach Skill Level 10.
Upgrade the IV Bag to Level 8.
Upgrade the Hunter's Bow to Level 8.
Upgrade the Ultrabuster to Level 8.
Defeat the Biker
Find 10 Magnets.
Upgrade 100 times.
Find 10 HP Vials.
Upgrade the Chainbelt to Level 8.
Upgrade the Eye2 to Level 8.
Upgrade the Missile Pack to Level 8.
Kill 10,000 enemies.
Reach Skill Level 5.
Upgrade the CORE to Level 8.
Upgrade the Dagger Glove to Level 8.
Upgrade the Parasight to Level 8.
Defeat the Worm.
Die.
Defeat the Bunny.
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Beat the game with Slime Spike, Chainbelt, LegSaw and Hydrocillator.
Beat Overdrive 4.
Beat Overdrive 5.
Enable Debug Mode.
Complete Enemy collection.
Complete Weapon collection.
Kill 500,000 enemies.
Kill 1,000,000 enemies.
Upgrade 1000 times.
Reach 40 Mortality.
Reach 50 Mortality.
Find 10 Dice.
Upgrade the Injection to Level 8.
Upgrade the Shinobi Equipment to Level 8.
Upgrade the Demon Wings to Level 8.
Upgrade the Frosty Cone to Level 8.
Upgrade the Electric Eel to Level 8.
Upgrade the Element Crystal to Level 8.
Beat a Daily.
Beat a run without using auto-aim.
I brought you a head.
Beat a run with 200%+ Vitality.
Beat a run with 200%+ Velocity.
Beat a run with 200%+ Attack Size.
Beat a run with 200%+ Projectile Speed.
Beat a run with 10+ Blackhole Slots.
Kill the Worm without splitting it.
Beat the game without being hit by an enemy or boss or bullet.