Defeat Bubble Man (Must be on Normal+ difficulty & Normal speed for all achievements unless otherwise stated)
Defeat Bubble Man without taking damage or using special weapons (Boss Attack allowed, teleporter refight not allowed)
Defeat Air Man (because I can't!)
Defeat Air Man without taking damage (Boss Attack allowed, teleporter refight not allowed)
Defeat Quick Man
Defeat Quick Man without taking damage (Boss Attack allowed, teleporter refight not allowed)
Defeat Heat Man
Defeat Heat Man without taking damage or using special weapons (Boss Attack allowed, teleporter refight not allowed)
Defeat Wood Man
Defeat Wood Man without taking damage or using special weapons (Boss Attack allowed, teleporter refight not allowed)
Defeat Metal Man
Defeat Metal Man without taking damage or using special weapons (Boss Attack allowed, teleporter refight not allowed)
Defeat Flash Man
Defeat Flash Man without taking damage or using special weapons (Boss Attack allowed, teleporter refight not allowed)
Defeat Crash Man
Defeat Crash Man without taking damage or using special weapons (Boss Attack allowed, teleporter refight not allowed)
Defeat Mecha Dragon in Dr. Wily Stage 1
Defeat Mecha Dragon in Dr. Wily Stage 1 without taking damage or using special weapons
Defeat Picopico-kun in Dr. Wily Stage 2
Defeat Picopico-kun in Dr. Wily Stage 2 without taking damage or using special weapons
Defeat Guts Dozer in Dr. Wily Stage 3
Defeat Guts Dozer in Dr. Wily Stage 3 without taking damage or using special weapons
Defeat the Boobeam Trap in Dr. Wily Stage 4
Defeat the Boobeam Trap in Dr. Wily Stage 4 without taking damage
Defeat the Boobeam Trap in Dr. Wily Stage 4 with only 6 Crash Bombs (all Crash Walls must be intact when fight starts)
Defeat Wily Machine 2 in Dr. Wily Stage 5
Defeat Wily Machine 2 in Dr. Wily Stage 5 without taking damage
Defeat the Alien in Dr. Wily Stage 6 and beat the game
Defeat the Alien in Dr. Wily Stage 6 without taking damage
Beat the game on Hard with at most 3 starting lives, without saves or passwords
Beat the game on Hard with at most 3 starting lives, without saves or passwords and without getting a Game Over
Beat the game without saves or passwords and without dying
Beat Boss Attack in under 2 minutes
Beat Boss Attack without dying
Beat Boss Attack without dying or refilling your health
Beat Boss Attack without taking damage
Complete the disappearing block section in Heat Man's stage without using Item 2
Complete both Force Beam sections in Quick Man's stage without using Time Stopper
Use the wrong weapon on a boss and heal them from 1 HP back to full, then defeat them without ever taking damage during the fight
Trigger an easter egg when selecting a stage (Unaffected by options)
Start playing with the remixed soundtrack (Unaffected by options)
Beat Boss Attack without dying or using special weapons
Obtain all pickups in Quick Man's stage in a single run without dying (Game Over to reset)
Obtain all pickups in Metal Man's stage in a single run without dying (Game Over to reset)
Obtain all pickups in Flash Man's stage in a single run without dying (Game Over to reset, Crash Walls don't count)
Obtain all pickups in Crash Man's stage in a single run without dying (Game Over to reset)
Obtain all pickups in Dr. Wily Stage 2 in a single run without dying (Game Over to reset, Crash Walls don't count)
Obtain all pickups in Dr. Wily Stage 3 in a single run without dying (Game Over to reset, Crash Walls don't count)
Obtain all pickups in Dr. Wily Stage 4 in a single run without dying (Game Over to reset)
Complete Bubble Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Air Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Quick Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Heat Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Wood Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Metal Man's stage on Hard without using the Mega Buster, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Flash Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Crash Man's stage on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Dr. Wily Stage 1 on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Dr. Wily Stage 2 on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Dr. Wily Stage 3 on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Complete Dr. Wily Stage 4 on Hard without using the Mega Buster, Metal Blade, E-Tanks, or restarting from a checkpoint (Game Over to reset)
Beat the game without saves or passwords in under 50 minutes (same timing as leaderboard)
Complete the first screen of Air Man's stage in under 1 minute (same timing as leaderboard)
Complete the Mole section in Metal Man's stage without taking damage, using special weapons, or pressing Left
Reach the boss door in Dr. Wily Stage 6 without taking damage or using special weapons, while holding Right throughout the whole stage