Stacking is a game that primarily makes use of a lot of uncertainty and randomness. At first, I wasn't even sure what the objective of the game was or how I was supposed to interact with it as a player. The score counter on the screen gave me the impression that I was supposed to receive points and aim for a high score. I was confused by the white circle on the top of the screen, and never really did figure out what the purpose of it was. Throughout this game, assorted colors of squares fall from the top of the screen. They fall from randomized places, which adds to the overall uncertainty of the game. I did not end up being able to score any points in the game or reach the top, which I believe was the objective. Honestly, this game was frustrating in that regard to me and felt very challenging. It felt like the game was working against my chances of success through its randomization and mechanics. As I figured that I was supposed to use the simple controls of moving left, right, and up to climb up the blocks and reach the top of the screen, I started trying that out. With the upward moving control, I was not sure exactly how to work it properly, but it seemed that I could phase through the blocks (in any amount) to reach the top of one or more blocks that had stacked. The blocks also stack in random ways. Sometimes, a block will simply stack on top of another. Sometimes a falling block will replace or overlap with an existing block. Sometimes a falling block pushes the blocks below it downwards, even sending some off the screen. As the blocks fell, it became apparent to me that I was supposed to avoid the ones that were falling. I did not want to be hit by a falling block, or get squished in between an existing block and the one that stacked on top of it. Because of this, it seemed that my two strategies were to move around on top of the stacks while trying to avoid falling ones or to sit at the bottom, hoping not to be squished into the ground, until I could phase to the top of multiple blocks in a stack. This game had a certain element to it of keeping me hooked and wanting to try to succeed/reach the top. As soon as I got hit by a block, the game instantly restarted-- I was transported to the bottom of the screen in my starting position and blocks began to fall. The visual design of this game is fairly simple, but it's interesting how a seemingly simple game can pose such a challenge for players. The frustration that this game created fueled my attempts to keep trying, as I wanted to score points, reach the top, hit the white circle, or just do anything that allow me to maybe progress in some way or "win" the game. While I ultimately wasn't able to achieve this, I felt challenged and intrigued by the uncertainty and randomness at play in this game.