We should make biscuits :9
[ Fortunately, the robot can't really fend off PM with just half an arm, and all it can do with Subaru is press her harder into that wall. A weaker (read: human) woman might have had her ribcage cracked like a walnut by now, but she's withstanding the pressure well for her small frame.
This is no time to mess around, though. Subaru cries out, the rockets on her skates flaring to life to thrust both up and into the robot's chest. Her knees are tucked in and with great force she pushes the robot back and away in order to get free.
The machine goes tumbling, and hopefully PM won't be caught by it as it comes crashing down. Subaru can't exactly spare a moment's breath to shout "timber!" ]