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.
Memories
Miss Neko
One round one win
Rinko
Miya
Complete hard mode in 5 minutes(or 7 minutes with DLC)
Hina
Aoi
Youko
Saki
Momoko
Mio
Nana
Mei
Sana
Hana
Zoom Out
Zoom In
Complete hard mode in 7 minutes
Beat Yumi
Happy new year!
Yumi's first time
Yumi's level
Play with Yumi
Bonus Level
Beat Meow
Meow's first time
Play with Meow
Meow's level
Level 12
12 girls
Beat Mio
Mio‘s first time
Bravo!
Play with Mio
Mio's level
Beat Miya
Miya‘s first time
Master
Play with Miya
Miya's level
Level 11
Beat Sana
Sana's first time
Play with Sana
Sana's level
Level 10
Beat Aoi
Aoi's first time
Play with Aoi
Aoi's level
Level 9
Beat Nana
Nana's first time
Play with Nana
Nana's level
Level 8
Beat Momoko
Momoko's first time
Play with Momoko
Momoko's level
Level 7
Level 6
Beat Hina
Hina's first time
Play with Hina
Hina's level
Level 5
Beat Youko
Youko's first time
Play with Youko
Youko's level
Level 4
Beat Saki
Saki's first time
Play with Saki
Saki's level
Level 3
Beat Hana
Hana's first time
Play with Hana
Hana's level
Level 2
Beat Rinko
Rinko's first time
Play with Rinko
Rinko's level
Level 1
Beat Mei
Mei's first time
Play with Mei
Mei's level
Hello meow