As Jerry the Mouse, you're constantly annoyed by your arch-nemesis, Tom the Cat; he always stops you from raiding his master's kitchen in order to smuggle the stolen food into your mouse hole. No matter what you try, it always gets foiled by the damn cat. This time, however, you have a plan to fully thwart him. You know that Tom's favorite food/drink is milk, a typical cat thing. You also remember that one time Tom tried to spike the milk to stop you (but instead made you go Mr. Hyde mode). With those two in mind, you decide to pull a similar trick of your own.

Without getting caught, you grab jars of weight gain powder from the kitchen closet and dump all of the powder into a bowl of milk. With a large wooden spoon, you stir the bowl for a long while to ensure the powder fully dissolves within the milk. Once that's done, you slide the bowl next to a sleeping Tom before hiding around a corner. The kitchen air smells of fresh bread from this morning's baking, and the floor feels cool against your tiny paws as you scurry into position.

Tom later wakes and sees the bowl of milk next to him, thinking it was placed there by his master. He instantly drinks up the entire bowl, leaving not a drop behind. Around 10 seconds later, Tom's stomach begins to grumble loudly, before suddenly expanding with a loud stretching sound. Tom's body instantly fattens up in the blink of an eye. He's now so fat and obese that he's practically immobile, as his paws are stuck from his fat arms and legs. He's basically a blob for a cat, taking up most of the kitchen floor.

"What?! My milk's been spiked and now I'm a fat blob!" He exclaims in shock and disbelief, his voice higher-pitched than usual as he struggles to move his now-massive body.