Here is the full list of all 63 Girlfriend Rescue achievements.
Dan 200 kills
John 200 kills
World 5 fully cleared
Megumi card
World 4 fully cleared
29 food consumed
Joy 50 kills
3 bonuses obtained
World 3 fully cleared
Saved 40 times
World 2 fully cleared
Katia 50 kills
Drink 40 Red Toros
Dring 1 Energyzer
First hour played
Dan 50 kills
John 50 kills
1,000 USD
Drink 6 Red Toros
Trying random party
World 1 fully cleared
Healed 1 time
I have a girlfriend
10,000 USD
Drink 10 Energyzers
Ralph 50 kills
Ralph 200 kills
Joy 200 kills
Phil 50 kills
Phil 200 kills
Martin 50 kills
Martin 200 kills
Snow 50 kills
Snow 200 kills
Cookie 50 kills
Cookie 200 kills
Lester 50 kills
Lester 200 kills
Al 50 kills
Al 200 kills
Cosmor 50 kills
Cosmor 200 kills
Laura 50 kills
Laura 200 kills
Katia 200 kills
10 hours played
30 hours played
60 hours played
Key used
Fully stocked on ibuprofens
Fully stocked on paracetamols
7 weird eyes used
199 food consumed
0 defeats on hardmode or higher
Dan level 40
World 6 fully cleared
World 7 fully cleared
World 8 fully cleared
Hard mode finished
Rogue mode finished
Maniac mode finished
Legendary mode finished
Dat kiss