Here is the full list of all 64 Intense Love Shot achievements.
Kill 100 monsters
Complete Stage 05 without taking damage
Complete Stage 05
Complete Stage 04
Complete Stage 04 without taking damage
Complete Stage 03
Complete Stage 03 without taking damage
Complete Stage 02 without taking damage
Complete Stage 02
Kill your first monster
Complete Stage 01
Complete Stage 01 without taking damage
Complete Stage 06
Complete Stage 06 without taking damage
Complete Stage 07
Complete Stage 07 without taking damage
Complete Stage 08
Complete Stage 08 without taking damage
Complete Stage 09
Complete Stage 09 without taking damage
Complete Stage 10
Complete Stage 10 without taking damage
Complete Stage 11
Complete Stage 11 without taking damage
Complete Stage 12
Complete Stage 12 without taking damage
Complete Stage 13
Complete Stage 13 without taking damage
Complete Stage 14
Complete Stage 14 without taking damage
Complete Stage 15
Complete Stage 15 without taking damage
Complete Stage 16
Complete Stage 16 without taking damage
Complete Stage 17
Complete Stage 17 without taking damage
Complete Stage 18
Complete Stage 18 without taking damage
Complete Stage 19
Complete Stage 19 without taking damage
Complete Stage 20
Complete Stage 20 without taking damage
Complete Stage 21
Complete Stage 21 without taking damage
Complete Stage 22
Complete Stage 22 without taking damage
Complete Stage 23
Complete Stage 23 without taking damage
Complete Stage 24
Complete Stage 24 without taking damage
Complete Stage 25
Complete Stage 25 without taking damage
Kill 500 monsters
Kill 1000 monsters
Kill 3000 monsters
Reach max affinity with Hotaru
Reach max affinity with Sora
Reach max affinity with Umie
Reach max affinity with Nariko
Reach max affinity with Himari
Raise one stat to max
Spend 50k in the Shop
Go to Credits
Unlock everything in the gallery