Use the RADAR to know if you are near a shark.
The shark is far to the EAST
The shark is close to the EAST
The shark is very close to the EAST
TRICK:
If the radar indicates that multiple directions have turned red, it means that the shark is in very close proximity.
Indicates how many sharks remain to be marked with a plank 
Indicates how much scrap you have collected
to move around the map 
to build a platform with the collected scrap 
You will win the game if all the sharks are marked with a plank.
You will lose if a shark eats you 
CAREFUL! If you use ALL the scrap to build platforms your final score will be very low