Super Yellow Submarine Ocean Avalanche Racer Deluxe: Part I; Escaping the Underwater Cave

Instruction

You are a yellow submarine in an underwater cave escaping from a deadly avalanche. You have 3 slots for powerups, which you can either put on before setting off or get during your escape. You get points for powerups but you can also get them by collecting diamonds (You must have an empty slot to collect one). Your score also depends on your time. Obstacles encountered on your path slow you down when you collide with them. You can move with the keys:

Up arrow - Up 

Left arrow- Left 

Right arrow- Right 

Down arrow- Down 

Powerups: 

Maneuver Boost- passive faster turning speed 

Speed boost- passive higher speed 

Shield- protection against one collision 

Nitro- momentary acceleration(SHIFT)