Here is the full list of all 70 Mighty No. 9 achievements worth 1,000 gamerscore.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 3 boss battle.
Complete any stage without using healing items.
Don't attack for the first 30 seconds of a boss battle.
Score 1,000,000 points in total.
Achieve all FINE PLAY! technical bonuses in the Last Stage boss battle.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 7 boss battle.
Complete every AMAZING! technical bonus.
Attack and absorb enemies 5 times in the air before landing.
Complete any stage with a 100% absorption rate.
Achieve an A rank or higher and 100% Xel absorption rate result.
Achieve all FINE PLAY! technical bonuses in the Opening Stage boss battle.
Complete the game on NORMAL difficulty.
Defeat all bosses with only normal attacks.
Complete a stage with Call.
Achieve all FINE PLAY! technical bonuses in the Prison boss battle.
Defeat all Mighty Numbers with only normal attacks.
Complete all stages and rescue all Mighty Numbers.
Achieve an S rank result.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 8 boss battle.
Maintain ability boosts for 60 seconds in any stage.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 2 boss battle.
Complete the City stage without taking damage.
Get 50 100% Absorption combos in a row.
Get 40 100% Absorption combos in a row.
Get 30 100% Absorption combos in a row.
Score 100,000 points in total.
Achieve a WONDERFUL! technical bonus.
Complete any stage with just a single death.
Defeat any Mighty Number without letting them heal.
Activate all ability boosts at the same time.
Get 20 100% Absorption combos in a row.
Get 10 100% Absorption combos in a row.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 1 boss battle.
Score 10,000 points in total.
Complete the opening stage.
Get 5 100% Absorption combos in a row.
Get 3 100% Absorption combos in a row.
Complete the game on HARD difficulty.
Complete the game on HYPER difficulty.
Complete the game without restarting on HARD difficulty.
Complete every SPRINTER! technical bonus.
Complete every QUICK CLEAR! And NICE CLEAR! technical bonus.
Complete the game within 120 minutes.
Complete the game within 60 minutes.
Witness every helping event by Mighty Numbers.
Complete any stage without taking damage.
Complete any stage without using a ReXelection or missing an attack.
Complete the Water Plant stage without being frozen.
Complete the Factory stage within 9 minutes with all transformations.
Complete any stage by dashing only 9 times or less.
Complete any stage by jumping only 30 times or less.
Complete any stage with Beck's feet touching the ground for no more than 1 second.
Complete any stage without pressing normal movement inputs for longer than 1 sec. at a time.
Complete any stage without absorption combos or technical bonuses.
Beat the final boss with zero lives remaining and low health.
Get defeated by a boss at less than 10% health.
Complete Mighty No. 9 on the 9th.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 4 boss battle.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 5 boss battle.
Achieve all FINE PLAY! technical bonuses in the Mighty No. 6 boss battle.
Achieve all FINE PLAY! technical bonuses in the Robot Factory boss battle.
Get more than 10 game overs in your play lifetime.
Drop 100m without touching anything.
Ascend 100m without touching anything.
Defeated a boss with 1% or less health on Beck.
Defeat Mighty No. 5 before he detonates his special attack.
Attack the final boss with every single Mighty Number ability.
Complete all themes in single-player Challenge Mode.
Complete Boss Rush Mode for the first time.
Complete Boss Rush Mode in less than 20 minutes.