Ah cool. Thanks. I hadn't heard that term before. The more you know. As you said in your last paragraph, that's what I was going for, is the slight borderlands sarcasm and humor. Consistency should be easier since it's based on an established tone, but I'll keep your thoughts in mind. Thanks again.

Lemony Narrator on TVTropes

In short, a Lemony Narrator for your purposes would be a narrator who could be treated almost on the level of another character in the story--putting a lot of attitude in what they say, describing things oddly, possibly having characters they prefer to talk about, etc.

To give a quick example, an ordinary narrator might describe a moment like this:

As Rainbow Dash blazed through the skies above Ponyville, her keen eye picked up something unusual on the ground.

"Ooh, is that a pie!?" she mentally noted.

Within seconds, she had already screeched to a halt, dropped down, and tended to the item in question: a saucer with a piece of grayish pie, conspicuous in the middle of the road.

When she gave the pie a sniff, however, it immediately released a fine black powder right into her nose. Her face immediately contorted, then her nose wrinkled. And she let out a great sneeze. Achoo! The sneezes continued for a good moment until she regained her senses.

"Pepper in a pie!? Who even does that?" Rainbow Dash grumbled in exasperation before flying off again.

Now for a very lemony version (this is not the only kind of lemony narrator voice but it's a more common one):

Rainbow Dash spied with her little eye a tasty morsel: a slice of pie, minding its own perfectly innocent business. It's quite extraordinary that she even spotted that one out of all the other plated slices of pie that normally inhabit this lot of Ponyville road dirt.

The champion of physical speed zoomed to the scene, her mental speed hopefully not lagging too far behind.

As Dash's eyes inspected their unassuming quarry, her stomach demanded that this nonsensical thing called suspicion get the hay out of the way. The stomach had a way of winning quite a lot with this girl, but this time they enlisted the aid of the nose to mediate the discussion.

One hearty sniff later, lo and behold, the trap was revealed: our heroine erupted into a fit of sneezing.

"Pepper in a pie!? Who even does that?" Must be someone who loves you, Dashie.

It's definitely a fun way to go about writing, but it takes some effort to keep the narrator's "character" intact as the story continues. The narrator generally doesn't have an arc (unless you make a particular point of it), so they will be snarky/sarcastic/bemused/whatever from start to finish.

Just something to throw out there, since I think it would be appropriate adaptation for a story inspired by a series like Borderlands that prides itself on comical presentation. Whatever you do, just keep it consistent, really.

~J

EDIT: Oh, here's a tamer example of lemony narration. Classic Disney Goofy!