How were you annoyed with the enemies? :P I thought they were awesome! I loved they're random shouts at you, how spazzy they would run to grab cover, shooting one while he's preparing to toss a grenade, they all had feel ^^ For being of the same guy's over and over again, they sure had way more character than most of the other games I've played out there :P
From 0 to KICKASS in .stupid seconds.