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