NES

Magic Floor

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Emulator

Frame rate: 0 FPS
Speed: 0 %
Uptime: 0:00
Controller: Keyboard

Emulated console

CPU: Ricoh 2A03 (6502), 1.79 MHz
Memory: 2 KB RAM
Video: PPU, 256×240, 54 colors
Video memory: 2 KB VRAM
Sound: 5 channels: 2 pulse, triangle, noise, DPCM
Cartridge: Mapper 0 · NROM, 16 KB / RAM
Emulator core: FCEUmm (EmulatorJS)

About Magic Floor

Platform: NES
Developer: Martin Korth
Year: 2012
Genre: Puzzle
Players: 1
License: Homebrew

Martin Korth's score puzzle: roll a boulder over a floor of tiles in four shades of brightness.

Moving to the next brighter shade, or from the brightest back to the darkest, earns a point. Moves between tiles of the same shade are free, and anything else is not allowed. Arrows mark where you have been, so repeating a move earns nothing.

Korth made Magic Floor as a freeware sample for his no$ emulators and tools, and the NES version ships with his no$nes debugger. It needs no CHR chip, because it uses half of the console's own nametable memory for graphics. A 2018 update added smaller floors. Damian Yerrick later ported the game to the Game Boy as Libbet and the Magic Floor, adding a boulder girl named Libbet.

How to play

Goal: Collect as many of the available points as you can.
Controls: The D-pad rolls the boulder. Hold A to jump to a tile further away.

Facts

A freeware sample from Martin Korth's no$ tools; the original dates from 2002.
Damian Yerrick ported it to Game Boy as Libbet and the Magic Floor (2018).
A 2018 update added a smaller floors option.

Cartridge

Mapper: 0 · NROM
PRG / CHR: 16 KB / RAM
Mirroring: Vertical
Saves: No

16,400 bytes · CRC32 3EBB9D3F · MD5 02d0de1cbc8e5bfb0bfcbc5d5a7f9f0b

Keyboard controls

D-pad: ← ↑ ↓ →
A: Z
B: X
Start: Enter
Select: V

Steam Controller

D-pad: D-pad
A: A
B: B
Start: Start
Select: Select

Xbox controller

D-pad: D-pad
A: A
B: B
Start: Menu
Select: View

DualSense controller

D-pad: D-pad
A: ✕
B: ○
Start: Options
Select: Create

Keys and controller buttons can be remapped with the Controls button under the game. Save and Load keep a snapshot of the game in your browser. Steam Controller works as a gamepad through Steam Input. On phones, on-screen buttons appear.