'''Basic Trope''': In a video-game, the player's allies (or at least those relevant to the plot), cannot die.
* '''Straight''': [[PlayerCharacter Sa]][[ActionGirl ra]] and [[PsychoSidekick Frederich]] are fighting enemies. While Sara can run out of HP and die, Frederich has [[YouCallThatAWound no such difficulties]].
* '''Exaggerated''': Frederich can be [[MoreDakka hit with tons of bullets]], [[KillItWithFire lit on fire]], [[DestinationDefenestration kicked out of windows]], [[HalfTheManHeUsedToBe sliced in half]], and even [[NukeEm nuked]] during gameplay, but simply gets right back up and keeps fighting.
* '''Downplayed''':
** Frederich can be killed during gameplay, but he benefits from having [[MadeOfIron a massive amount of HP]], and is unlikely to die unless the player is extremely negligent.
** Frederich can in fact die but [[DeathIsCheap it doesn't stick]]. Thirty seconds after getting headshotted he'll stand back up again.
* '''Justified''': Frederich has a major HealingFactor.
* '''Inverted''': Vince, a plot-relevant enemy, cannot be killed.
* '''Subverted''': A [[OurGhoulsAreCreepier Warghoul]] pounces on Frederich in unscripted battle-sequences and [[SlashedThroat slices his throat out]], as all of his HP is depleted...A screen comes up saying, [[HaveANiceDeath "You failed to protect Frederich. Game Over"]]....
* '''Double Subverted''':...But just as soon as that happens, [[FissionMailed the Game Over screen disappears]] and Frederich stabs that Warghoul through the face.
* '''Parodied''': Sara wonders aloud why the government doesn't just send Frederich to do all the fighting, seeing as how he can't die.
* '''Zig Zagged''': For the most part, Frederich is invincible. But at one point, one of the ghouls injects him with serum that negates his HealingFactor, and Sara has to [[EscortMission protect him]] until it wears off. Also, Frederich can actually die if he is pushed off a cliff, pushed into lava, or [[SuperDrowningSkills water]].
* '''Averted''': Frederich has a life meter, and once it runs out, he's done for.
* '''Enforced''': The developers don't want the game to suffer from quality due to people constantly losing because Frederich dies.
* '''Lampshaded''': "You know, Frederich..It's pretty cool having an unkillable partner. Sure beats havin' to watch your back all the time!"
* '''Invoked''': ???
* '''Exploited''': Sara has an entire moveset based around using Frederich as cover or a human shield.
* '''Defied''': The developers programed Frederich good attack AI so he does have to be babysat, but is not immortal
* '''Discussed''': ???
* '''Conversed''': ???
* '''Implied''': You are separated from Frederich but hear him on the radio involved in battle. Despite his [[TakeYourTime many calls for assistance and insistence he can't hold out for much longer]] he will never die no matter how many times you hear him report that he has been hit.
* '''Deconstructed''': Sara's model is stuck in a glitch while Frederich is getting hammered by a whole ghoul army a few yards away. Since he can't actually die, [[GameBreakingBug the player has no choice but to restart the level]]. Also, people exploit the game by sitting behind a corner while Frederich fights all of the enemies.
* '''Reconstructed''': The devs fix all those stupid glitches, and some bad guys deliberately bypass Frederich to attack Sara.
* '''Played For Laughs''': [[ButtMonkey Frederich]] is largely useless in combat despite being immortal and having powerful attacks. He serves mainly as an excuse for MookChivalry as they flinch-lock him (the only one in the game who is vulnerable to that it in fact) to prevent him from pulling off moves that are utterly reckless for mortals but result in {{One Hit Kill}}s. Cue AmusingInjuries.
* '''Played For Drama''': In a NonStandardGameOver sequence, Sara and Frederich are captured by enemy forces. After [[ForcedToWatch killing Sara right in front of his face]], the ghouls decide to subject him to ColdBloodedTorture, [[AndIMustScream forever]]...
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%% Optional items, added after Conversed, at your discretion:
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%%* '''Implied''': ???
%%* '''Plotted A Good Waste''': ???