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