I dont know how this gets hard to you guys. You cant starve o get drowned, and you get healed by all (without mentioning you have like a 10 healing boosts in the water all the time). The start is sliiightly difficult when you get against a real ship, but nothing crazy. 95 points in like half an hour!
GREAT game, really simple and fun, but could be a lot harder for the achievments there are.