Here is the full list of all 160 Shonen Idle Z achievements. It takes around 200 hours to unlock all of the achievements on Windows.
Collect 30 clothes
Complete collection at 100%
Complete all rank S missions
Collect 30 pets
Collect 27 clothes
Collect 27 pets
Complete collection at 80%
Complete all rank A missions
Collect 24 clothes
Collect 24 pets
Collect 21 clothes
Collect 21 pets
Reach monster level 450
Defeat the 40Th boss
Reach monster level 400
Get 10 party companions
Kill 8 M monsters
Collect 18 pets
Complete collection at 60%
Complete all rank B missions
Kill 7 M monsters
Gain 2500 shonen power
Kill 1500 bosses
Kill 1250 bosses
Kill 1100 bosses
Kill 950 bosses
Gain 1337 shonen power
Kill 800 bosses
Kill 650 bosses
Collect 18 clothes
Get 9 party companions
Gain 1000 shonen power
Reach monster level 350
Kill 6 M monsters
Kill 5 M monsters
Kill 4 M monsters
Collect 15 pets
Kill 3 M monsters
Kill 2 M monsters
Collect 15 clothes
Kill 500 bosses
Kill 400 bosses
Gain 500 shonen power
Have 150 K training points
Kill 300 bosses
Have 130 K training points
Have 110 K training points
Have 100 K training points
Have 90 K training points
Have 80 K training points
Complete all rank C missions
Kill 200 bosses
Collect 12 clothes
Have 70 K training points
Kill 1 M monsters
Complete collection at 40%
Kill 750 K monsters
Collect 12 pets
Have 60 K training points
Get 8 party companions
Get 7 party companions
Get 6 party companions
Get 5 party companions
Kill 150 bosses
Gain 150 shonen power
Gain 250 shonen power
Collect 9 clothes
Defeat the 30th boss
Reach monster level 300
Have 50 K training points
Reach monster level 260
Gain 1 QaD global ki
Gain 1 Td global ki
Reach monster level 220
Gain 1 Dd global ki
Kill 500 K monsters
Gain 100 shonen power
Defeat the 20th boss
Gain 1 Ud global ki
Reach monster level 180
Gain 1 Dc global ki
Get 1 No attack points
Gain 1 No global ki
Reach monster level 150
Get 1 Oc attack points
Gain 1 Oc global ki
Collect 9 pets
Get 1 Sp attack points
Have 30 K training points
Kill 100 bosses
Reach monster level 120
Gain 1 Sp global ki
Get 1 Sx attack points
Kill 250 K monsters
Collect 300 treasure chests
Have 20 K training points
Gain 50 shonen power
Kill 50 bosses
Complete all rank D missions
Get 1 Qi attack points
Gain 1 Sx global ki
Complete collection at 20%
Collect 200 treasure chests
Collect 6 clothes
Collect 150 treasure chests
Have 10 K training points
Get 4 party companions
Kill 100 K monsters
Collect 6 pets
Collect 100 treasure chests
Gain 10 shonen power
Collect 75 treasure chests
Collect 50 treasure chests
Have 5 K training points
Get 3 party companions
Gain 5 shonen power
Collect 25 treasure chests
Get 2 party companions
Get 1 party companion
Collect 3 clothes
Defeat the 10th boss
Kill 10 bosses
Reach monster level 90
Gain 1 Qi global ki
Play 5 months
Get 1 Qa attack points
Play 3 months
Play 4 months
Play 2 months
Collect 15 treasure chests
Play 1 month
Gain 1 Qa global ki
Play 3 weeks
Reach monster level 70
Kill 10 K monsters
Play 2 weeks
Get 1 T attack points
Play 1 week
Play 3 days
Play 1 day
Collect 10 treasure chests
Kill 5 bosses
Gain 1 T global ki
Collect 3 pets
Reach monster level 50
Get 1 B attack points
Have 1000 training points
Collect 5 treasure chests
Gain 1 B global ki
Kill 1 K monsters
Reach monster level 30
Get 1 M attack points
Get 100 K attack points
Gain 1 M global ki
Reach monster level 20
Gain 100 K global ki
Have 100 training points
Reach monster level 10
Kill 100 monsters
Kill your first monster