This is a quick knock up of the old classic super mario sent in to us. The developer is very new to the Qt framework but is surprised at what he is able to achieve in about 4 days.
Here's a game I made with pure QML (no C++), costs around 4 days. QML is very easy to learn, I was a web developer and had no experience whatsoever with QML or Qt, but made this game while I learn the languge. Very easy and pleasant. The video is a bit laggy because of the recording software, the game itself runs smoothly. PS: The game has a small bug of detecting platform, you will see in the video.
Controls by left, right, z key. Not counting graphics and audio it's 7 QML files which sums up around 12KB.
UPDATE: Here is the Source Code, Thanks to Dz902