Controls (when starting the game) Type in A or B when the prompt appears (and then press Enter) to choose a control scheme. Scheme A uses the up and W keys to turn the tetromino right, while Scheme B uses the space bar to turn it right instead. Type in 1, 2, or 3 to choose a color palette for the tetrominoes. This has no effect on gameplay, but Palette 1 uses the tetromino colors from Tetris N-Blox specifically, Palette 2 uses the regular colors used in most modern versions of Tetris, and Palette 3 turns all of the tetrominoes different hues between cyan and blue. Controls Left or A - Move tetromino left. Right or D - Move tetromino right. Down or S - Soft drop a tetromino. Up or W (Scheme A) - Turn tetromino clockwise (right). Space (Scheme B) - Turn tetromino clockwise (right). Z or O - Turn tetromino counterclockwise (left). Scoring (multiplied by level) Single - 40 points Double - 100 points Triple - 300 points Tetris - 1,200 points
High Scores (based on comments) 1. @BartTheSock - 144,200 points, 166 lines, Level 17 2. ??? 3. ??? Credit to @Griffpatch-Academy for the tutorials used to make this. Credit to Alexey Pajitnov for creating Tetris in the first place. Version History January 15, 2026 - v1.4: Updated the way the game determines upcoming tetrominoes to use a "triple bag" system, where three sets of each of the 7 tetrominoes are randomized and appear in sequence. This makes getting the same tetromino in a row more likely while still allowing each type of tetromino to generally show up at the same rate. November 15, 2024 - v1.3: The code for tracking the level, score, and lives has been made more efficient. The game now starts off a tiny bit faster (like how it was originally), and gets faster more quickly. Also, the game doesn't end when a tetromino locks in at the top of the screen; only when it locks onto any tile occupying a tetromino already on the top of the screen where they spawn. November 8, 2024 - v1.2: The O and I tetrominoes turn around their midpoint rather than the center of a specific cube (this makes the O tetromino unable to move in other directions if you try to turn it). The controls are also far less annoying, especially in later levels. Palettes 1 and 2 have also swapped properties because I prefer the colors from Tetris N-Blox over the traditional colors (since I grew up playing Tetris N-Blox). November 3, 2024 - v1.1: Added a new control scheme that swaps the up and W keys with the space bar. The tetrominoes fall slower at first, but the speed picks up more quickly as the levels go on. Also added the ability to choose the control scheme and the color of the tetrominoes before starting the game. The scoring system is the same as both Tetris N-Blox and the NES version of Tetris. Replaced the game over jingle from Super Mario Bros. with the "bonk" sound effect from the Scratch sound library (because that was the closest to a buzzer that I could find in said library). November 1, 2024 - v1.0: Lines of blocks can be cleared as tetrominoes are put in place. Added a basic scoring system (that sadly doesn't count for T-spins since that's a bit too complicated for me to program on my own), and added a game over jingle (the one where Mario dies in Super Mario Bros) to the end if you top out and lose. The blocks fall faster as the levels go on, up to a speed of fifteen blocks per second at Level 30 (well, more or less, since Scratch runs at 30 FPS). Also added a preview panel that shows the next tetromino that will be chosen, and changed the way the tetrominoes are actually chosen so that it is a "single grab bag", meaning that each of the seven tetrominoes are chosen in a random order, and after all seven pieces have had a chance to appear, the cycle repeats until you top out and lose. October 18, 2024 - v0.4: The tetrominoes turn clockwise when the player presses up (or W). Wall kicking also exists to make turning tetrominoes in tight spaces less annoying. October 11, 2024 - v0.3: The tetrominoes can be moved left and right by using the left and right (or A and D) keys, and they also fall faster when the down (or S) key is held down (which is called a soft drop). October 4, 2024 - v0.2: The tetrominoes now fall at a rate of 5 blocks per second to the bottom of the screen. New tetrominoes are spawned when the one before it touches the bottom, but the tetrominoes can currently go through each other. September 27, 2024 - v0.1: Added the seven tetrominoes, colored after the versions in Tetris N-Blox on Neave, the exact version of Tetris that I was introduced to when I was three years old and played until Neave took it off their website about a decade and a half later. The tetrominoes spawn at the top of the screen.
