I should thank you. But it would be more fun to kill you.

6 seconds sound clip from the Wreck-It Ralph movie soundboard.

You can hear this line at 01:24:15 in the Blu-ray version of the movie.

Quote context

[...]

- Come on!

- One more! One...

- Welcome to the boss level!

- Turbo.

- Because of you, I'm now the most powerful virus in the arcade! I can take over any game I want.

- I should thank you. But it would be more fun to kill you.

- Get back here, little guy!

- Have some candy!

- Where do you think you're going?

- I'm not through with you yet. Up we go!

[...]