Arnold, you should know, when we reach the end of the game...
Arnold No. Don't tell me. I want it to be a surprise.
I'm sure it will be.
Played by Ryan Pinkston 
Spy Kids 3-D: Game Over (2003) · 10 quotes
Spy Kids 3-D: Game Over (2003) · 10 quotes
4th most-quoted character in Spy Kids 3-D: Game Over (2003): in 3 of its 10 quotes
Most scenes with: Juni (2), Rez (2)
Scenes with Arnold
3 scenes Arnold 
[after coming out of the lava thinking he'd be out of the game]
I thought I was a goner. [spits lava out of his mouth]
Arnold I saw all my points flashing away before my eyes. All I could hear was my father saying, "You blew it, Arnold! No untold riches for you!"
Agent Damage Report
[shows Juni the beta tester boys in their real life form]
Cortez, are these the boys that were in the game with you? We tracked them through their e-mail addresses.
Yeah, that's them. They wouldn't know anything about- [doesn't recognize the boys in their non-game form] Hey, wait a second. What happened to Francis the Brain, Arnold the Strong and Mr. Cool?
Well, in the real world, I'm not that smart.
Arnold I'm not strong.
I'm not cool.
So, who are you out here in the real world?
Francesca Giggles
Special Agent Cortez, we need you.