Game Boy Color & DMG Demake • GBDK-2020

Connect 3. Compact.
Cascade.

The classic logic puzzle reborn for Nintendo Game Boy and Game Boy Color hardware.

Not a Tetris Clone

No tetrominoes, no rotation. A single coloured cell descends a narrow 4 × 12 well. Landing it connects lines of 3 or more matching cells — horizontal, vertical, or diagonal — which vanish, collapse under gravity, and chain into compounding cascades!

Download ROM .GBC • 128 KB Play on itch.io

Game Boy Color

Original DMG

Instant Web Player

Play Directly in Your Browser

Play right here in your browser or directly on itch.io with full keyboard and mobile touch support.

Move: Arrow Keys / A, D Drop: Down / S / X Start / Pause: Enter Mute: Shift

Dual Hardware Design

Engineered from the ground up to shine on both full-color Game Boy Color screens and high-contrast 4-shade original Game Boy (DMG) displays.

CGB

DMG

Title & Attract

Clean retro presentation with animated attract demo.

CGB

DMG

High-Contrast Glyphs

Geometric patterns tuned for monochrome clarity.

CGB

DMG

Flash Elimination

Instant visual feedback on 3+ line elimination.

CGB

DMG

Top 5 Leaderboard

SRAM-backed 3-initial arcade high score table.

Faithful Logic Engine

Complete 1:1 match resolution, gravity compaction, and cascading combo chain physics built in C with GBDK-2020.

Battery SRAM Save

Persistent cartridge saving for the Top 5 High Scores (with 3-initial arcade entry), lifetime game stats, and soundtrack preferences.

hUGEDriver Chiptunes

3 full chiptune tracks driven on hardware timer interrupts by MuteAudio, accompanied by 12 snappy CBT-FX sound effects.

Universal Hardware

Runs on authentic DMG Game Boy, Pocket, Light, Super Game Boy, Game Boy Color, Game Boy Advance, and Analogue Pocket.

How to Play

Master the rules, exploit cascading gravity, and maximize your score.

Single Cell Drop

Coloured cells descend one at a time down the 4×12 well. Position each cell with precision before it settles.

3-Way Line Matching

Connect 3 or more same-coloured cells in straight lines: Vertical, Horizontal, or Diagonal.

Compacting Cascades

Matched cells vanish and floating cells collapse down. When newly settled cells form new lines, they trigger compounding Cascade multipliers!

Level Progression

Every 45 eliminated cells advances to the next level, accelerating fall speed from Level 1 up to high-intensity Level 21.

Scoring System

Scoring rewards deep cascade chains and long hard drops.

Scoring Formula

Points = (Base Bonus + Multiplier × Rows Dropped) × Level × Total Cascade Patterns

Match Pattern	Base Pattern Bonus	Hard Drop Multiplier
Clean Landing (No match)	30	1×
3 Vertical	50	5×
3 Horizontal	70	7×
3 Diagonal	100	10×
4 Vertical	200	20×
4 Horizontal	250	25×
4 Diagonal	300	30×
5 Vertical	500	50×
6 Vertical	1,250	125×
7 Vertical	3,500	350×
8 Vertical (Max Stack)	9,500	950×

Controls Guide

Authentic tactile Game Boy control mapping with DAS auto-repeat and safe pause countdowns.

Gameplay Controls

D-Pad ← / →: Move falling cell (with DAS auto-repeat)
D-Pad ↓ / A Button: Hard Drop (instant drop & settle)
Start: Pause / Resume (with 3-2-1 countdown)
Select: Instant in-game Audio Mute toggle

Menus & Name Entry

D-Pad ↑ / ↓: Navigate menus / Cycle letters A–Z
D-Pad ← / →: Select initial slot (1–3) on high score
A Button / Start: Confirm selection / Enter initial
B Button: Back / Return to title screen

Original Chiptune Soundtrack

Featuring 3 energetic chiptune tracks composed by MuteAudio, selectable in the in-game Settings menu:

Track 1

Here In My Home

Track 2

The Only One

Track 3

The Def

Explore the Ursiny Games Collection

Discover other games developed and demade for mobile and retro platforms.

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Connect 3. Compact. Cascade.