Perform a diagonal spark to cross the sand.

Requires:

"canPrepareForNextRoom",
"canPlayInSand",
{"useFlashSuit": {}},
{"shinespark": {"frames": 11, "excessFrames": 4}}

Dev note: This is a separate strat, because the suitless bootless Evir projectile dodge is much more difficult when starting from the right side of the room.