Art Evolution: The earlier comics are simple and have less stuff in each panel; modern strips are generally more complex in their art and word bubble placement. More to the point, Rick apparently changed his look at some point, meaning there's "classic" Rick and "modern" Rick.
Conservation of Competence: At the one end you have Mullet Boss. At the other, Rocket Hat. Which end is which? Rocket Hat can beat the Moon Men handily, frequently, single-handedly, and silently (strangely). Mullet Boss... can kick a dog in its junk.
Doesn't Like Guns: Parodied with the Knifeketeer- his sole power is stabbing, which has actually left all his nemeses dead. Rather than being praised, he is a laughing stock due to his lack of worthy foes. Well, that and his boxing glove knifes.
Early-Installment Weirdness: Very early comics had Scott giving the advice as himself, rather than as a neutral third party, and then following it to the letter in the illustrations. The more modern versions start at around here.
Incompetence, Inc.: Scott's workplace. Incompetent boss, apathetic employees, angry clients who keep inexplicably coming back for more. The corporate higher ups of the company send their worst employees there and deliberately provide them low funding.
Insane Troll Logic: Jenkins. Sometimes 'insane' is the more operative part of the term, sometimes 'troll' is, but most times you can never be sure.
Noodle Implements: Parodied; Rocket Hat gained his abilities in a conspicuously unexplained "accident involving model rockets, a hot glue gun and a plastic souvenir Viking helmet". Despite it being transparently obvious how such items would create a rocket-hat, it doesn't remotely explain how it turned him into a Badass Normal superhero.
Reminiscing About Your Victims: This comic about how to fake a smile suggests, in its final panel, just thinking of a pleasant memory and letting your face do the job by itself. What was the memory in question?
I remember the time I murdered that hobo and made a poncho out of his skin. Good times.
Scott: To the person who told me the story in panel one: I have not told anyone your name, nor have I drawn any likeness of you. You can never sue me, or even act offended without identifying yourself. I win. Rick: In the most cowardly way possible.
Scott: I'm sorry, what was that? Mullet Boss: My bag. Scott: Yes. Mullet Boss: Wags. Scott: Uh, okay. Mullet Boss: WAG SING! WAG SING, MY BAG! Scott: I still don't know what you're talking about, but I'm begging you to stop explaining.
Take Our Word for It: In every panel with Rocket Hat, he's in exactly the same pose, facing the same direction. Anything he does is described after he's off panel.
Technical Pacifist: The Knifeketeer has several special knives for defeating a foe harmlessly, most prominently the "Fist-knife". It's actually very effective, as foes collapse from laughing too much.
Throw the Dog a Bone: Once in a while, Rick gets the better of Scott, generally in a meaningless way. Ironically, it appears that the real Rick does not like those occasions, because then he envies his fictional self.
When All You Have Is a Hammer: When the Knifeketeer comes under suspicion of attempted murder, his "defense" is that he always wants to stab everyone. Turns out he thinks that "defense" is a kind of stabbing in its own right.