Killzone 2
84 Achievements
30-35h
PS3
Boltgun Monkey
Kill 10 enemies in one round using the Boltgun in Arctower Landing
0.4%
How to unlock the Boltgun Monkey achievement in Killzone 2 - Definitive Guide
UNOBTAINABLE DUE TO SERVER SHUTDOWN
See Boltgun Junkie. This trophy may be unlocked in an unranked game against bots, but not in Skirmish Mode.