Here is the full list of all 50 Mega Man 11 achievements.
Destroy all types of Gabyoall, Elec Crosser, and Elec Xtender. (1st Play) (Excludes Challenge Mode)
Defeat 30 enemies while their guard is broken. (1st Play) (Excludes Challenge Mode)
Destroy 100 enemies using Speed Gear. (1st Play) (Excludes Challenge Mode)
Destroy 10 enemies during one Speed Gear use. (Excludes Challenge Mode)
Use a Mystery Tank and turn an enemy into a 1-UP.
Complete the game on Normal difficulty or harder within 60 minutes. (1st Play)
Destroy an Arc Weldy obstacle.
Get Bronze Rank or higher five times.
Get Silver Rank or higher five times.
Get Gold Rank five times.
Complete the game on Normal difficulty or harder without getting a game over. (1st Play)
Complete the game on Casual difficulty or harder without buying/using items or parts. (1st Play)
Destroy three or more enemies using a Shimobey explosion.
Defeat three or more enemies with one charge shot.
Unlock and view all Gallery files.
Complete the game on Normal difficulty or harder.
Complete the game on Superhero difficulty.
Run into an instant-death hazard without dying.
Destroy 20 Crunch Don, Press Don, and Sniper Armor D in total. (1st Play) (Excludes Challenge Mode)
Defeat an enemy using the Final Charge Shot.
Purchase five parts.
Defeat a Mawaru C using your Mega Buster without Speed Gear.
Complete all 8 of the 8 stages.
Destroy a Tatepakkan from the back.
Destroy 30 enemy projectiles. (1st Play) (Excludes Challenge Mode)
Complete 4 of the 8 stages.
Destroy all types of Metall, Shield Attacker, Sniper Joe, Gabyoall, and Batton. (1st Play)
Destroy 10 blocking enemies using special weapons. (1st Play) (Excludes Challenge Mode)
Destroy a Sniper Joe piloting a Sniper Armor D.
Destroy 80 enemies using Power Gear. (1st Play) (Excludes Challenge Mode)
Use a special weapon while Power Gear is active.
Destroy a Mini Shpider using an acid pool, BBQ grill, or other environmental hazard.
Complete 1 of the 8 stages.
Defeat a boss using only Power Gear attacks. (Excludes Challenge Mode)