To help better understand the needs of the community, I'd like to get a discussion started regarding a demonstration game to showcase what the engine can do. Consider this a sort of "choose your adventure" style thread. This will not be a full fledged game, just a playable demo for users to better grasp what the engine is capable of. Things worth talking about: What would make the demo look pretty? What hardware should it be targeted for? What gameplay style should it follow? How can we showcase specific feature sets with this demo? Things not worth talking about: How many zones should it have? Should it feature special stages? Which of Sonic's friends should be featured in the game? The good points about having a demo, is not only does it show what users can do with the engine, but also provides a small pool of example content for users to look at and help them build their own games with the engine. In terms of levels, there should be at most one zone with at least a single act. To get things rolling, let's start off with a gameplay style question: 2.5D or 3D?