Jump between the two mines to the left arranged at a 45º angle, and land on the 45º slope. Jump above the next mine, and run and jump up the slope to get onto the bounceblock on the right. From there, jump up near the top of the eye, and jump between the two horizontally arranged mines blocking your path to get to the doorswitch. Jump between the two near-vertically arranged mines to your left, onto the left bounceblock. From there, fall onto the left side you climbed up on. Right before you slide into the mine and die, jump between the same two mines you jumped through at the beginning and jump into the door.