Видео ютуба по тегу Johan Koelman

Brand new ZX81 hires games with Johan Koelman in the house!
Brand new ZX81 hires games with Johan Koelman in the house!
Johan Koelman tells Radio 2 about the Spectrum30 show
Johan Koelman tells Radio 2 about the Spectrum30 show
The Digital Lifestyle Show #794 – 1K programming with Johan Koelman
The Digital Lifestyle Show #794 – 1K programming with Johan Koelman
The Edge 2009 YRS Dr BEEP Johan Koelman Netherlands SINCLAIR ZX SPECTRUM
The Edge 2009 YRS Dr BEEP Johan Koelman Netherlands SINCLAIR ZX SPECTRUM
Grand Pr1x [(Grand Prix) 2009 YRS Dr BEEP Johan Koelman Netherlands] ZX Spectrum 48K
Grand Pr1x [(Grand Prix) 2009 YRS Dr BEEP Johan Koelman Netherlands] ZX Spectrum 48K
MC10start
MC10start
20250621 155512
20250621 155512
City Escape 1K (Hi-Res) ZX81 by Johan
City Escape 1K (Hi-Res) ZX81 by Johan "Dr Beep" Koelman
Breakout Technical explanation
Breakout Technical explanation
OPENBARING 16 Van der Werf (Johan Philip Koelman 1884)
OPENBARING 16 Van der Werf (Johan Philip Koelman 1884)
Car Race 1K (Hi Res) ZX81 by Johan (Dr. Beep) Koelman
Car Race 1K (Hi Res) ZX81 by Johan (Dr. Beep) Koelman
candy - cover by Vänner
candy - cover by Vänner
Mushroomman ZX81
Mushroomman ZX81
i will follow - cover by Vänner -
i will follow - cover by Vänner -
TRAINSPOTTER first train running
TRAINSPOTTER first train running
Battleship book ZX81
Battleship book ZX81