Weeks ago, you were at the jelly-fisher convention, and you saw a presentation of a fish called "Dr manowar", which he explains that he was stung by a dangerous jellyfish and survived, but wasn't scapes unharmed since he have a lump on his face that still hurts, and was showing an illustration of this jellyfish called Big Lenny, and really, it should have been a very scary moment for Manowar. Weeks later, at 9 PM, the jelliens started to attack the city, and you ran to your house to pick your important things up and bring them to the Krusty Krab, the safe place.

Big Lenny: When you were in the second floor of your house, you suddenly heard the window from the first floor breaking, like someone entered your house by it. You hid in a box, and then, you see him, Big Lenny floating upstairs and going to the hallway. You got lucky because you were the second person to see him without dying, but pure unlucky because, well, he's an dangerous jellyfish, and he's searching for you, so don't get caught by him, one little sting and you're dead!