Weird bug occurred on lv2 after going through the blue platform for the
4th time and reaching 100%, blue flashes and eventually a System ERROR.
Could not reproduce by increasing the energy collection rate, even at
200%.
* -fno-exceptions: avoids unwind (-18 kiB)
* -lm before -lstdc++: avoids pulling math_stubs_float.o which links the
entire set of math float functions just to use atanf()