Vexxarr only feels safe and comfortable around the robots that are actively trying to kill him. If they offer to help, that's when he gets worried.
Alien Invasion: One by Vexxarr, which failed. A second one is defeated by using technology stolen from Vexxarr.
Ambiguous Innocence: Sid is so innocent that he actually comes around at cynicism from the other side.
Anti-Hero: Vexxarr. This tends to depend on how insane the situation has currently driven him.note You know it's bad when he starts trying to knock his conscience out of his head by slamming it repeatedly against a bulkhead.
Blue and Orange Morality: To some degree, virtually the entire cast. The comic does a great job of making them identifiable anyway by focusing on the commonalities, but it occasionally likes to remind you that, among the main cast, only the hopelessly neurotic eyeball bush has an outlook or sense of morality remotely similar to human standard — for Sid in particular, reminding you just how bizarre his status as the bottom of his food chain makes his outlook by human standards or even the standards of the other aliens is an outright running gag.
Vexxarr: Just determine the most hazardous place (the warp sabot) could have gone and start our search there...
Carl: I hate to say it but he has a certain practical logic...
Minionbot: I concur... past experience supports this.
Vexxarr: Whoa whoa whoa... stop right there! What have I told you both? We do not...ever...goad the universe!
Cowardly Lion: Sid, like all rock-crabs, is afraid of almost everything, despite the fact that very little can hurt him.
To make it even weirder he feeds on radiation, like that produced by Bleen weapons and antimatter explosions. So he loves the things that most sane beings would fear the most.
Dangerously Genre Savvy: Vexxarr's usual high level of Genre Savviness can sky-rocket into this occasionally. Usually this is directly proportional to how insane a bad situation has become.note Considering that every situation is almost always bad...
Deadpan Snarker: Vexxarr, Minionbot and Carl. Vexxarr and Carl have ribbing matches that go on for panels.
Everything Trying to Kill You: And everyone. By the time Vexxarr has gotten through facilitating an all-out war between the Bleen and the Lattrox, the only people's hit list he isn't on is the humans and their allies. And that's a pretty damn tiny percentage of the space-faring races, considering that it amounts to about... 3.
Genre Savvy: Vexxarr has become increasingly savvy about his attempts to find safety, to the point of having a betting pool on how long after encountering anything they would be attacked or ordered to surrender.
Vexxarr: ...alright, fifty-seven seconds. Who had fifty-seven seconds?
Minionbot: I had five dollars on fifty-seven but it was under 'Prepare to be assimilated...'
Good Is Not Nice: Vexxarr is a borderline type IV Anti-Hero who can be quite vindictive when he wants to be. But he still has a conscience - albeit one he has tried to literally bash out of his own head - and he will - in the end - do the right thing.note Eventually. He is not going to be nice about it though. Ever. And depriving him of cake is probably going to send him off the deep end.note The aesop of this story is to always supply your Anti-Hero with chocolate gateau whenever they have to make an important moral decision.
Doctor: Have you tried listening to your conscience?
Vexxarr: ...and maybe think about how my actions affect the lives of those around me? Nope. Let's exhaust our surgical options first.
Gravity Sucks: Averted; at one point Vexxarr actually tries to hide in a black hole's accretion disk, relying on his invincible hull to protect him against the radiation. It almost worked, too.
Gun Porn: In the early, black and white days of the comic, the art of earth's millitary equipment looked significantly more detailed than the characters.
...unless, of course, it would be unimaginably fun...
Hammer Space: Vexxarr can conjure a paper list of research projects performed by Bleen AI seemingly out of thin air. The explanation: It's just that important to remember how any research project headed by an AI has Gone Horribly Wrong and ended with the creation of a tiny sun. (Except the one that ended with a super massive black hole.)
Heroic Neutral: Vexxarr somehow keeps getting dragged into the problems of every race he finds, even though all he wants is a long boring life full of cake and Halo.
Aid: You have my sword. *beat* Ok. That was disturbing beyond words.
The Heart: Sploorflix keeps trying to get everyone to work together, help all the creatures they come across, and wants everyone to live in love and peace. Unfortunately, for him, he's in the wrong universe and within a lightyear vicinity of Vexxarr and Carl, where his extreme idealism does not hold up well in the face of Vexxarr's wormhole of cynicism. However, he does still manage to drag Vexxarr's conscience out into the open more than once, though, pulling their somewhat dysfunctional crew into doing the right thing. ...Eventually.
Droid: We shall demonstrate that we have wills. That we are masters of our own destiny. Nrrrggg! Gung-Gunggggg!
Vexxarr: Oh, and I took the liberty of rescinding your self-termination protocols.
Droid: GREEN DEVIL!!
I'm a Humanitarian: The Lattrox's schtick. To the point where the only other alien race thus encountered in their region of space was cloaked.
Invisibility Cloak: Vexxarr encounters a civilization who cloaked their entire planet to avoid the Lattrox. Unfortunately, the controls to the cloaking field were cloaked as well.
Insult Backfire: An interesting example. Anytime Vexxarr claims that all machine life is murderous and always planning the destruction of organic life, his two robot crew will happily admit that he is correct.
Vexxarr: Not until that... that machine admits that it is a calculating, survival obsessed, self-centered, tyrant wannabee with a pathological hatred of anything organic!
Carl: Yep. That's me to a tee. Shall we continue to the Lattrox DMZ?
Iron Buttmonkey: The crew are regularly hurled across the cabin by uncompensated acceleration, decompressed, crushed, beaten up, chewed on by monsters, or scorched by energy entities, and yet never take permanent harm. Also, the ship remains unaffected by frequent collisions with asteroids, space debris and other ships.
Never Tell Me the Odds: Spoofed when Minionbot explains he's living the dream as a space pirate, fighting enemies and beat them against impossible odds.
Minionbot It turns out the modifier impossible was chosen more for accuracy than color.
No Mouth: Bleen, Shlumpoids, and Rock Crabs. Rock Crabs don't need to eat but it's never explained how Bleen eat all that cake, and in fact it was a bit of a running gag in some of the early strips. Whereas Shlumpoids are apparently such messy eaters that the process is always shown just off-screen.
Noodle Incident: When Carl and Minionbot are reviewing the results of simulated drone operations, we don't get to see what they're looking at, but we do hear the names Carl gave the various simulations, such as "Ode to places a cutting torch should never go", "Three drones, one airlock and no sense", and the cautionary tale about plasma torches, hypergolic fuel and explosive decompression called "Don't".
Rubber-Forehead Aliens: Averted, all aliens look decidedly non-human. The only strange thing is that despite Vexxarr's single eye, his eyebrow shows the exact same position-by-emotion as two human eyebrows would. See his angry-look (his look for roughly 90% of the comic.) in the trope picture.
Starfish Aliens: The crew alone includes two species that reproduce by budding, one of them a one-eyed cnidarian that can survive in space for brief periods and the other a mass of eyes on tentacles whose LiveJournal counts as a Logic Bomb of mass destruction.. And a Nigh IndestructibleSilicon Life Form that feeds off radiation and is scared of anything that eats.
Locutron:Great Orator, I swear these ships and the thousands like them have been built to carry your message of peace and fraternity to all inteligent systems in the nebula. Their mission is one of peace. We wish to show nothing but our love for all living things.
Vexxarr: Yet I can't help but notice that your envoys of are bristling with weapons.
Locutron: There is, of course, always the slight possibility that they will not love us back.
Vexxarr: Word of advice? Keep 'em charged.
"The Reason You Suck" Speech: Vexxarr's own robotic allies frequently give him one. And then there's the hostile AI left by the Schlumpoid Forebearers, who gives them to any Schlumpoid in range. They actually make use of it by assigning him to teach a class called 'Stasis: The failure of Schlumpoid Culture.'
AI: Welcome class. I want to begin by saying that no matter how your grades turn out, I will be giving each of you an F.
Schlumpoid: What? What have we done to deserve that?
AI: By the end of the semester, I expect you to tell me.
Sploorfix: Just tell me what you think of when you look at him.
Later done with consent to Minionbot to disengage the malfunctioning hyperdrive.
Minionbot: ...because saving the ship inevitably results in Sploorfix blogging about it. And I am therefore safer out here!
It seems airlocking is habitual among Bleen...
Bleen Invasion Fleet Commander: Command makes for a lonely life...that and flushing your bridge crew into space...
Translator Microbes: Justified, since Vexxarr is telepathic. However, all newly picked up crew members can not only talk to Vexxarr, but also to each other without problems (No mouths are ever seen on them either, and Sid lived in a vacuum, so perhaps they communicate telepathically too).
Who's Laughing Now?: After managing to successfully impersonate the leader of a group of vegetable-based AI that have been trying to kill him, he vents pretty much all of the frustration he's accumulated over the course of the strip through creative vengeance
Sploorfix: What are you thinking?
Minionbot: That Vexxarr has been in space entirely too long.
Bleen commander: Look, I'm going to make this easy for you. Either tell me whether or not that planet is indeed the earth or throw yourself out of the airlock. Your choice. [.....] Command makes for a lonely life. That, and flushing your bridgecrew into space.
Granted, spacing is not fatal to the Bleen, but after the number of acolytes in orbit became a navigational hazard the Emperor started vaporizing them instead.