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