The guitar duel between Megabyte and Bob in "Talent Night".
Megabyte: I've always wanted to do that.
"Wizards, Warriors, And A Word From Our Sponsor" is Mike The TV's moment in the sun. During a particularly hazardous game, he advertises kitchen products, spews countless corny taglines, and, with a little ingenuity, actually saves Dot, Bob and Enzo from various demons. And even makes a game-winning catch at the end.
Mike:AND THE CROWD GOES WIIIIIIIIIIIIIILD!!!
Slash, of all people/sprites/programs/whatever, gets one in the episode "Gigabyte". The titular virus (a combination of Hexadecimal and his boss Megabyte) drains Hack of energy. This enrages Slash so much that he uppercuts Gigabyte all the way back to Mainframe from the island that Bob was trying to use to get distance between the Principal Office. Despite boxing Bob's plans, this was undeniably awesome. Even more so Slash's justification:
Slash:He hurt my friend.
The opening credits to "Firewall," which is a Shout Out to the James Bond movie opening titles, complete with cheesy female singer.
Matrix, back at Mainframe after Game-hopping for all those cycles, fights Megabyte. One of the first things he does is dent Megabyte's chest.
Particularly the look on Megabyte's face as he realizes that 'the boy' tossed aside his gun, not out of bravado, but because he doesn't need it. And Matrix follows it up by hurling Megabyte THROUGH A WALL.
Honestly, this entire fight scene is awesome from beginning to end.
Little!Enzo's speech to Matrix and AndrAIa in Daemon Rising, after they become infected. Little!Enzo's "What the Hell, Hero?" spiel overpowers Daemon's infection.
In spite of the fact that it ends really badly for Enzo, the various fights between him and the User in "Game Over" are damn awesome. It gets better when later, as Matrix, he eventually gets his revenge on the particular User character that sent him and AndrAIa across the web.
"Infected": Dot kicking Megabyte's ass with a giant robotic exoskeleton.
Bob calling Turbo out during the My Two Bobs arc after it is revealed that the 'other' Bob was really Megabyte all along.
Bob:"I really don't care what you think about my theories, Turbo. If we had done things your way, Hexadecimal would have been deleted and the entire net would've been destroyed." The look on Turbo's face really says it all!
Hex: Now I suppose you'll want thanks for all your hard work?
AndrAIa having an old west showdown with an infected guardian. She wins of course.
Same episode, Gun! Death Blossom Mode!
Matrix driving off the web riders by shooting through the a hole in the ship and landing headshots on a few of them.
Bob saving Andr A Ia and finally reuniting with Matrix in the web.
Bob merging with Glitch and opening a portal to Mainframe from the Web. As he does so, he restates his format: "to mend and defend."
In retrospect, the Crimson Binome. He is one of the few people to subdue Frisket. Frisket is usually portrayed as a nigh-unstoppable killing machine, something that gives even Megabyte pause. Yet he cubed him like an ace.
