Here is the full list of all 104 Miss Neko achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Hello meow
Mei's level
Play with Mei
Mei's first time
Beat Mei
One round one win
Level 1
Rinko's level
Play with Rinko
Rinko's first time
Beat Rinko
Level 2
Hana's level
Play with Hana
Hana's first time
Beat Hana
Level 3
Saki's level
Play with Saki
Saki's first time
Beat Saki
Level 4
Youko's level
Play with Youko
Youko's first time
Beat Youko
Level 5
Hina's level
Play with Hina
Hina's first time
Beat Hina
Level 6
Momoko's level
Play with Momoko
Momoko's first time
Beat Momoko
Level 7
Nana's level
Play with Nana
Nana's first time
Beat Nana
Level 8
Aoi's level
Play with Aoi
Aoi's first time
Beat Aoi
Level 9
Sana's level
Play with Sana
Sana's first time
Beat Sana
Level 10
Miya's level
Master
Play with Miya
Miya‘s first time
Beat Miya
Level 11
Mio's level
Bravo!
Play with Mio
Mio‘s first time
Beat Mio
Level 12
12 girls
Memories
Mei
Rinko
Hana
Saki
Youko
Hina
Momoko
Nana
Aoi
Sana
Miya
Mio
Miss Neko
Zoom In
Zoom Out
Meow's level
Play with Meow
Meow's first time
Beat Meow
Bonus Level
Complete hard mode in 5 minutes(or 7 minutes with DLC)
Yumi's level
Play with Yumi
Yumi's first time
Beat Yumi
Happy new year!
Complete hard mode in 7 minutes