I am rating it as a Demo and not released version of the game.
I think this game has a lot of potential to be a great game, it is definitely unique in its own sense but at the same time, it also seems like a mix mash of different types of games, i.e. point n click, rpg crafting, and side-scrolling adventure.
The animations for the sex scenes are super smooth but the walking animations are jittery and painstakingly slow, it could be my computer but it still looks great. I would suspect that the sex scenes are scripted and is playing as a movie instead of a game. This is a demo and there are some demo breaking bugs but since it is so short, I can just relaunch the game.
I would love to see where this game is headed story wise since it has so many different types of characters and settings, from Dinosaur to Space to Half-Life. I think if anything, the developer should focus on one character path first. Even if there are only 3 playable characters, all that branching will make development slow for each path. Like I said this game has potential to be great but at the same time, it could be as easily abandoned.
What would be a 5 star demo? More character actions in the game or maybe even a tutorial section.