Here is the full list of all 30 Hacking with Benefits achievements.
Fail to download a picture
Reveal 60% of Umeko Pic (level 10)
Reveal 100% of Umeko Pic (level 10)
Reveal 60% of Satomi Pic (level 09)
Reveal 100% of Satomi Pic (level 09)
Reveal 60% of Rei Pic (level 08)
Reveal 100% of Rei Pic (level 08)
Reveal 60% of Noriko Pic (level 07)
Reveal 100% of Noriko Pic (level 07)
Reveal 60% of Masami Pic (level 06)
Reveal 100% of Masami Pic (level 06)
Reveal 60% of Kimiko Pic (level 05)
Reveal 100% of Kimiko Pic (level 05)
Reveal 60% of Izumi Pic (level 04)
Reveal 100% of Izumi Pic (level 04)
Reveal 60% of Haru Pic (level 03)
Reveal 100% of Haru Pic (level 03)
Reveal 60% of Cho Pic (level 02)
Reveal 100% of Cho Pic (level 02)
Play your first level
Reveal 60% of Akiko Pic (level 01)
Reveal 100% of Akiko Pic (level 01)
Beat a level with Download 100%
Collect 20 sequent waves without errors
Collect 5 sequent waves without errors
Play 100 times
Lose 20 times
Win 100 times
Complete 50 perfect circle waves
Get all achievements