THIS IS INSTINT ACTION
First go to hoth
choose to be a wampa
go to hoth hangers walk out of hangers
turn left and keep walking
once youve walked up the hill a ways
you will see bright flashings rainbows all over the sky
then the sun will get bright
the terrain will mess up too
if you walk backwords then it will stop and turn off
if you walk forwars then turn around and walk away it will stay through the rest of the battle

note: if you have it on when the battle ends
then it will stick on forever
until you turn the game off and on a couple times