This yellow submarine carries James, Jessie, Sarah and Ryan - after they had been on a buffet!!
Bring them home safely.
The Heavy Submarine is as what it is: a heavy yellow submarine. Much effort is needed to keep it afloat, however it is just with a one-touch gameplay - flappy bird style.
Navigate through undersea world and avoid the mines. Sounds easy? Try it and you will know how hard it is.