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