Bule
Bule is a treasure hunt on the sea floor. You steer a small blue diver through sunken ruins and coral, sweeping up the lost artifacts that lie on the bottom, and a meter at the top of the screen shows the teleporter filling as you go. When it is full, a click warps you out of the way of whatever is coming and back into open water.
The arrow keys move, and A, S, D and F work as well, for a hand kept on the left of the keyboard. The teleporter is the whole skill of the game: it charges while you swim, so the longer you stay out among the artifacts the more escapes you have stored, and the click is worth saving for the moment the floor gets crowded. It is a GameSheep game by WitchHut, drawn in flat blues and bright coral.
