Here is the full list of all 20 Hentai Loli vs Pedobear achievements.
Cleaner
Assassin
Soldier
Find Forest
Find SkyScraper
Find Factory
Find Airport
Sniper
LaraCroftova
Find Bridge
PedoBearKiller
Deadly
Sharp
Find Stadium
Find Tram
Precision
Sheriff
Gunslinger
Tough
Find Downtown