🎹 Neon Tiles — Row Row Row Your Boat

A neon-styled 4-lane rhythm game built around the eternal "Row, Row, Row Your Boat" — the chart was transcribed directly from sheet music and runs through the full 8-bar round twice. Cyberpunk visuals with a cyan→magenta gradient palette, ambient drifting tiles on the start and game-over screens, and the Orbitron typeface turn the gentle pond song into a 6/8 cruise through synthwave.

🎮 How to Play

• Tap / Click — Tap tiles on mobile, or click them with the mouse on desktop.
• Keyboard — Use A S D F for the four lanes (left → right).
• Hold notes — For taller tiles, keep the key/finger pressed until the tile clears.
• Burst tiles — Most tiles in this chart fire 2- or 3-note flourishes from a single tap, capturing the song's 6/8 sub-beat motion (especially the "Mer-ri-ly mer-ri-ly" triplets).
• Pause — Space or P
• Mute / Unmute — M
• Quick start / restart — Press D while any overlay is showing.

✨ Features

🎵 Real Score, Real Pitch

• 8 measures played twice (16 measures total per cycle), transcribed directly from sheet music — both passes of the full "Row, row, row your boat / Gently down the stream / Merrily, merrily, merrily, merrily / Life is but a dream" round.
• Every note plays at its actual pitch in C major across an octave-spanning hexatonic range (C4 / D4 / E4 / F4 / G4 / C5 — six notes, no chromatic detours).
• Tempo is ♩.=120 in compound 6/8 time — the dotted-quarter feel of two beats per measure rather than six counted eighths. Each tile = one main beat (500 ms).

🎶 점4분음표 Slot Mode — Unique in the Batch

• This chart is the only one in batch0513 that uses dotted-quarter slot mode: 1 tile = 1 dotted-quarter beat (♩.), matching the natural compound-time pulse of 6/8 rather than the underlying 8th note grid.
• This compresses the melody into just 28 tiles per cycle — the most compact chart in the batch — while preserving every rhythmic event through bursts.
• The "Mer-ri-ly mer-ri-ly" runs at m5–m6 become 3-note same-pitch burst tiles, where a single tap fires three same-pitch eighths in rapid succession — physically capturing the rolling triplet motion in one gesture per main beat.
• The verse's mixed quarter+eighth rhythms ("Row your boat", "Gently down the", "Life is but a") are rendered as 2:1 timing bursts — the second pitch lands at exactly the 2/3 sub-slot position, preserving the song's groove without splitting it across tiles.
• The "stream" / "dream" 점2분음표 cadences at m4 and m8 are 2-tile holds — full dotted-half sustains that let each phrase ring out before the next.

🚀 Progressive Difficulty + Cycle Flash

• BPM increases by +12.5% per cycle (♩.=120 → 135 → 152 → 171...). The compact 28-tile chart means each cycle finishes quickly, so speedup ramps up fast.
• Each cycle is also transposed up by a whole step (2 semitones), sending the pentatonic-feeling melody into ever-brighter keys.
• Cycle transition flash: every new cycle pops up a centered banner — CYCLE 2 / ♪ +2 · ⚡ +12% — with a scale-and-glow animation, so the moment you survive into harder territory feels earned.

💢 Visible Miss Feedback

• Tap on empty space, hit the wrong tile, release a hold too early, or let any tile fall off-screen — all trigger a red flash at the relevant tile (and a circle pulse at the tap point), held for 450 ms.
• Plays a dissonant low buzz with downward portamento so misses are clearly audible.
• The game ends after the miss display, giving you a clear "what just happened" beat.

🎨 Polished Neon Visuals

• Hand-tuned per-lane colors along a cyan → blue → purple → magenta gradient that matches the logo.
• Glowing tube borders, soft outer halos, and scanline textures only inside the active press zone so the tappable area is instantly readable on hold tiles.
• Ambient floating tiles drift continuously down behind both the start screen and the game-over screen.
• Animated "neon tile" START button that physically slides down the board into the game on press — no jarring screen transitions. Same treatment on the PLAY AGAIN button.
• Score-burst flash animation on every successful hit.

🧠 Smart Lane Distribution

• Lanes are picked dynamically rather than randomly: the algorithm avoids consecutive same-lane spawns and balances left vs. right side usage.

🎯 Forgiving Hold Timing

• Hold tiles only require 75% of the full duration — releasing slightly early still counts.
• The hold-progress fill uses a soft gradient fade at its top edge instead of a hard line, so there's no visible pass/fail boundary to fixate on.

🎼 Scoring

• 10 points per beat cleared (so a 2-beat 점2분 hold = 20), with bursts counted as a single tile regardless of how many pitches sound.
• High score saved locally and shown on the start and game-over screens.

📱 Mobile-First Input

• Multi-touch support — different fingers on different lane