Vincent holds the tablet with one hand. He presses the index of his left one against his ear.

VINCENT: Set the Popguns to the max. The robot isn't being affected by your rays.

WITTY: OK!

Witty turns a wheel in the side of her Popgun.
*RRR-CLAK*

WITTY: Popgun to the max.

Ace emulates her.
*RRR-CLAK*

ACE: Idem.

Both guys start shooting again. The rays they shoot now seem to be wider, and have a violet shade over their usual blue. The robot is hit, but instead of stopping it starts running towards them.
*THMP*

ACE: It's coming.

WITTY: Step back.

*THMP* *THMP* *THMP*