This is absolutely wonderful! It feels like some old online game I'd find and play when I was young! I love the visuals, from the trail of the mouse cursor to the photo-realistic images of popcorn, to the fancy cursive "Fin~" message. The gameplay itself is not too complex, but the constant ramping up of difficulty can make the later bursts pretty hectic and fun. The one thing I find to dampen the mood is that it the condition for a player to lose a life didn't feel clear from the instructions, as I was expecting to lose a life for each kernel of popcorn that fell past the screen. But with how the game raises the difficulty by constantly adding in more popcorn, I understand why you made it so the player can only lose one life per burst.