Offscreen Moment of Awesome/Web Comics

Examples of Offscreen Moment of Awesome in Web Comics include:

8-Bit Theater features this as a fundamental part of the humor of the comic. Most of the promised epic battle scenes (a) don't happen at all; (b) are resolved with a completely mundane anticlimax; (c) get resolved off-panel, frequently by a different character or characters. This includes the defeat of the Final Boss.
Happens in Niels when the titular character succeeds in pushing Agent 300's Berserk Button.
Played for laughs by Sluggy Freelance.

"Okay, we were going to dedicate a full Sunday comic to the epic battle, but it's Bun-Bun against a turkey! Come on people!

Meat Shield provided the page image as a lampshade to the trope.
Played with again, The ninth issue of Insonicnia is, basically, a standoff between Sonic and Shadow before they start fighting. The tenth issue is missing/broken. The eleventh issue is pretty much nothing but the characters talking about how awesome the fight was... oh, and shadow being convinced to move into the house.
Parodied in xkcd here.
A Running Gag in Basic Instructions is the viewer never gets to see any of superhero Rocket Hat's epic, well, superheroism, just awed after-the-fact descriptions. And then there's this comic, which is one of the most literal examples of this trope ever.
The battle between Mell and Dr. Narbon in Narbonic during the story "Battle for the Lost Diamond Mines of Brazil".
The sheer scope of Homestuck requires that many awesome scenes be left out or glossed over for the sake of moving the story along, but the Trolls' fight against the 12x prototyped Black King is arguably the off-screen climax of Act 5-1. Its absence inspired the 6-minute long song Rex Duodecim Angelus and a nearly-completed Flash fan collaboration.
In Girl Genius, Violetta can steal anything. Even if it's being held by someone else, who is watching her, and she's across the room. However, these amazing feats of misdirection and sleight of hand only happen just off-panel.
- Generally it happens between the panels where holographic decoy and invisibility device are switched on and off — since we know that's how Smoke Knights do all sorts of sneaky stuff when people watch. So visually it's all the same, except the exact moment when objects in question disappear in thin air.

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