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User prompt

Touch controls: On-screen buttons (← → ↓ ↑ Rotate + Hard Drop). Responsive design: Fits all screen sizes (portrait/landscape). Performance: 60 FPS even on low-end devices."

Initial prompt

Create a 1:1 exact clone of the original Tetris with these SPECIFIC details: Core Mechanics: 7 Tetrominoes (I, J, L, O, S, T, Z) with identical shapes/colors. Hard drop (instant fall), soft drop (accelerated fall), hold piece. Rotation system: Classic Nintendo "wall kick" behavior (test with tight spaces). Game Rules: Blocks lock instantly on landing (no delay). Line clear: 1 line = 100 pts, 2 lines = 300 pts, 3 lines = 500 pts, Tetris (4 lines) = 800 pts. Level progression: Speed increases every 10 lines (Lv1 = 0.8s/fall, Lv10 = 0.1s/fall). Visuals/Sound: Exact 8-bit aesthetic: Grey background, black playfield grid. I-piece = cyan, O-piece = yellow, etc. (original NES colors). Sound effects: Move: blip Rotate: click Line clear: fanfare Controls: Keyboard: ← → = Move ↑ = Rotate ↓ = Soft drop Space = Hard drop Touch: On-screen buttons (if mobile). Mandatory Tests: T-spin must work (T-piece into 3-corner slot). "Death" when blocks stack to top. NO deviations from classic Tetris. Use the 1989 NES version as reference."