newt , you are right, I had the CubeMaze by Yann in mind. Sorry, I meant no disrespect.
jayderyu , I understand what you mean, I'd also read on an other topic that C2 is build in a way that it's very difficult to change/add some core features.
I just think that some aspect in (game) creation are the same no mater what tool you use. All design tools offer guide lines for example. A new design software should include this feature because it's proven to be useful and should not wait from a 3rd party plugin to do it or for its users to request it.
Having said that, I'd expect from a game engine to have some features that are known to be useful, like animation tracks, path creation tools etc. And since there are many inspired 3rd party tools that had been made for the other game engines, try to implement them in your new software.
Of course, here lays the "one person developing" problem.
Tokinsom , I couldn't agree more with you about the 3rd party plugin problem. That's why I think that all those tools (ideally) should be included within a game engine.
As for the difficulty in using a tool like the one in the rayman video, if it's anything like Ferr2DTerrain I'd say that it is fairly easy to set up. I mean, the tile editor in C2 is more difficult INHO and it is only the last step in an amazingly tedious workflow of creating a series of tilled textures.
Valerien , while I underestand your point of view and your agreement in Aphrodite 's words, I disagree with your statement about people with little programming experience and I'll support that with this question: If Unity had the event system programming logic that C2 has, would that automatically meant that it is made for people with no programing experience? Wouldn't most of the people here jumped immediately into using Unity, with all its advanced futures, its extended functionality by 3rd party components and its wide spread of use in many titles and studios as an industry standard? I think yes. In my opinion, what defines C2 is not it's (wonderful) way of programing, but that it targets mainly the HTML5 platform (for good or bad).