## Description
An old friend has preceded the player in a pixelated 2D flooded subterranean
cavern complex. In this underground, underwater maze, illuminated by
bioluminescent fish, nostalgic notes have been left in small air pockets
staggered approximately every 10 seconds’ swim-distance. Conveniently, the
player can use the keyboard arrow keys to swim for 10 seconds (represented by
a giant countdown in the middle of the screen) before running out of breath,
fading to black… then returning to the site of the most recently-visited
note. Sometimes the cave’s twists and turns hide the entrance to the nearest
air pocket, and sometimes series of notes lead to dead ends, requiring
backtracking. Eventually, with patience and persistence, the player may be
able to catch up with his own friend (whose lack of swim constraints are
quoted in the game’s title).