Incineration
"When you activate your laser eyes now, it might hurt a bit."
Bubbles recalls Professor's warning, prior to the initiation of this simulation, and seems to hesitate for a moment despite Blossom and Buttercup's insistent cries for assistance. The monster was a giant, with a reptilian's scales but a feline's claws, and a maw full of daggers. Blossom and Buttercup struggled in the monster's grasp, stuck.
"LASERS, BUBBLES! LASERS!"
Once she activated the recently upgraded lasers within her retinas, her pupils expand - eating the blue of her eyes - and birthing a red bar of pure energy to incinerate that which is within her current line of vision - the monster's arm. She screams but it cuts through the monster's scales and even sears the now revealed flesh to be irritated - the pain causing it to release her sisters on accident when he involuntary winces in response to it.
"Ow, that hurt!" The monster manages to bellow before the scenery and himself devolves to a series of complicated code and eventually even that fades as they return to reality.