Rush in to attack Red-Hot Heat Girl from the front!

"Your fire may be messing with my plasma shots, but there's a lot more to me than my Girl Buster!" the blue-clad heroine boasted, putting away her Girl Buster for the moment as she ran in to close distance. "Let's get up close and personal!"

"Hu hu hu...! That's just the way I like it, Buster Girl! Come to mommy!" Heat Girl encouraged her opponent, even as she continued to pump her fists up and down in simultaneous motions. This seemed to be her charge-up technique. The fires continued to spin around, swirling higher and covering more of the safe area in dangerous, roaring flames!

The heat was unpleasant, but Buster Girl persevered, driven by a combination of her desire to redeem her mechanoid foe from Doctor Dolly's evil designs and to get a better look at those bodacious boobs of the corrupted Robotic Heart Day Care teacher. Buster Girl hopped from space to space in a zig-zagging pattern, closing distance until she was within arm's length of her opponent sweating, tan flesh.

Which was the right next move?

((Time left until burning begins decreased by one!))