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Repair holes in the submarine and get to the surface in 20,000 Leaks Under the Sea!
Use your trusty blowtorch to weld patchs onto your ever deteriorating submarine.
Enjoy 20,000 Leaks Under the Sea.
(Unfortunately this is balanced poorly, you can complete it easily within the first couple leaks, yet becomes impossible if you allow things to worsen. Repair the first couple leaks before you try to raise the sub if you want a challenge!)