"Come at me! Thrust with your sword!" - Possibly perverted old swordsman from the various Legend of Zelda games
"Behold my floating fortress, the Egg Carrier!" - Dr. Robotnik in Sonic Adventure
"GOT EQUIPPED WITH BUBBLE LEAD" - Megaman 2. Probably supposed to be "You got the Lead Bubble" or some such, whatever a "lead bubble" is supposed to be
"Metroids are not pets. Metroids are not for target practice." - Space pirate log entry in Metroid Prime 2: Echoes
"It breathes. It breathes. It breathes. You die..." - Typical Angband endgame
"That's a, um, red potion. I think it, um, replenishes your hearts. Or something. I'm not sure, I just work here part-time." - Undermotivated shopkeeper in The Legend of Zelda: Majora's Mask
"You are too big to be a slug." - Zero to a miniboss in Megaman Zero
"My name is Maha Ganeshariff. All of the data in your memory has been stored in the server in my body. To recover it you must defeat me. Will you do it?!?" - A boss from Megaman Zero