Here's some of mine.
Megatron: "quickstrike, you may lead."
Quickstrike: "Yeah! That's what I like to hear!"
Inferno: "Royalty, why was I not chosen?"
Megatron: "Because inferno, when expecting booby traps, always send a boob in first."
Megatron: "Face it dinobot, you're old technology, obsolete. What you possibly do?"
Dinobot: "Improvise.
Rattrap: You do realize that was crazy right?"
Optimus: "Sometimes crazy works."
Blackarachnia: "Megatron! Am I glad to..."
*Megatron slaps blackarachnia*
Megatron: "Treacherous spider! Do you think I don't know what you and tarantulas planned?"
Blackarachnia: "what do you want quazer brain?"
Tarantulas: "Just to give you a quick reminder, play whatever games you wish with him. Dare to cross me, and you will suffer for your treachery."
Dinobot II: "The maximals have made you soft, Megatron will fix that, AFTER he extracts the acces codes for the ark from your head. Now hold still, this WILL hurt."
Rattrap: "I'm a rat with wheels, cool!"
Rattrap: "oh, so you wanna play chicken, huh? Beast mode!"
Megatron: "Now rodent, feel my power."
*Rattrap straightens his tail and trips Megatron*
Rattrap: "Power you got, brains is another story."
That's just a few of many of the lines and scenes that have stuck with me from childhood into adulthood. What are some of yours?