Here is the link to the free version (playable via web browser): https://fingertainment.itch.io/harryrabby2-low-vision-free
Alternatively you may install the free version from Google Play (Android only): https://play.google.com/store/apps/details?id=com.harryrabby.lowvisionfree
Here is the link to the demo video: https://youtu.be/e0Mqn4hlTAo