Here is the full list of all 16 Pantsu Hunter: Back to the 90s trophies - there are 2 bronze, 4 silver, 9 gold and 1 platinum.
Good job! Completed all tasks!
Collect 18 panties
Collect 6 panties
Collect 12 panties
Complete epilogue
Open all extra-scenes
Open 15 endings
Open 40 endings
Open all endings
Die 5 times on a chair
Lose 50 times
Lose 70 times
Read the prologue
Collect 5 panties in one try
Collect 6 panties in one try
Remove all viruses in 20 seconds