Someone's making more.

4 seconds sound clip from the Big Hero 6 movie soundboard.

You can hear this line at 00:33:15 in the Blu-ray version of the movie.

Quote context

[...]

- Are you done?

- Yes.

- It will take me a moment to re-inflate.

- Fine, just keep it down.

- My microbots?

- Someone's making more.

- Hiro? (2)

- You gave me a heart attack!

- My hands are equipped with defibrillators.

- Clear.

[...]