You are the diver in red and blue. Try to get to the right side of the screen without getting attacked. Hint: The shark will go after you; the octopuses won't.
This is one of the first games I ever made, way back when I didn't know the different between "there" and "their" so I apologize for the obvious youth involved. It's not the best game out there, but I'm leaving it up as a reminder of where I started. Hope you enjoy!