letterz
X	Y	WARP	Where to find them.
xx	yy	W	In a Mound .
xx	yy	A	In plain sight.
xx	yy	R	In a Cupcake near a Crumbling Bridge puzzle.
xx	yy	P	In plain sight, next to a Coin .
There should be one (and only one!) Warp Letter in a Custom Level, and it should be the only prize reachable via a Red Warp . There should be nothing else in the area reached required to complete the puzzle.