The Dog House Megaways: the same kennel, a very different machine
If you have played the original Dog House, you will recognise the artwork and almost nothing else about how this game behaves. The Dog House Megaways takes the same cartoon dogs and rebuilds them on the Megaways engine, which is a fundamentally different way of constructing a slot and one that beginners find baffling until somebody explains it properly.
Megaways is a mechanic licensed from Big Time Gaming, and its defining feature is that the board changes shape on every spin. The number of symbols on each reel is not fixed. A reel might show two symbols on one spin and seven on the next, and it decides afresh every time you press the button.
The build here at FakeRainbet Fun is the free Dog House Megaways demo. It runs on virtual credits with no deposit behind them, no account, no download and nothing withdrawable. For an absolute beginner it is a very good place to meet Megaways, because it is a mechanic that is genuinely hard to grasp from a written description and completely obvious once you have watched it for five minutes.