Here is the full list of all 36 UPPERS achievements.
Clear End Chapter.
Clear Act 6.
Unlock all playable characters.
Reach maximum (LV5) Voltage.
Watch every reward cutscene for 1 Queen.
Clear Act 5.
Get 30 Love Letters.
Clear Act 4.
Use all map gimmicks.
Clear Act 3 Side Story.
Clear Act 3.
Defeat a boss with an Upper Rush.
Clear Act 2.
Defeat a boss with a Friendship Upper Rush.
Clear Act 1.
Defeat Chapter 1 boss with a finisher.
Get "Ino-Shika-Cho" in Panty Slots.
Activate map gimmicks/special actions 100 times.
Change clothes in the ONEPOINT shop for the first time.
Get a match in Panty Slots.
Activate Panty Slots.
Perform a Friendship Upper Rush.
Successfully perform an Upper Rush.
Perform a Rise Up.
Get 1 Love Letter.
Defeat 1 grunt.
Lift Shopping District's Queen skirt.
Get 50 Love Letters.
Defeat all bosses on the streets.
Watch every reward cutscene for 4 Queens.
Get "World Expo" in Panty Slots.
Watch every reward cutscene for all Queens.
Get 100 Love Letters.
Clear all Panty Slot combinations.
Clear the last Chapter without taking any damage.
Obtain all available trophies.