X Marks the Sushi
X Marks the Sushi was a sushi truck located somewhere in Beach town, Equestria. It was manned by an unknown attendant
History
While exploring the beach, Sunset Shimmer came across a message in a bottle that was written in a strange codec. Realizing it was a pirate map, she, Twilight Sparkle and Pinkie Pie followed the map to find the treasure at the end. At first, they thought the treasure was the Rainbow truck, but soon they discovered it was actually X Marks the Sushi doing a weird, pirate themed marketing compaign.
For completing the treasure map, the girls were awarded with free wasabi.