<?xml version="1.0"?> <challenge version="2"> <track id="mines" laps="3"/> <mode major="single" minor="quickrace"/> <requirements trophies="150"/> <hard> <karts number="4"/> <requirements time="170"/> </hard> <medium> <karts number="4"/> <requirements time="190"/> </medium> <easy> <karts number="4"/> <requirements time="255"/> </easy> </challenge>