I think this game is pretty good overall. The movements feel good and I could certainly see it becoming even more fun with skill. I thought the level design was a bit lacking, especially when it comes to where the player is supposed to go. Often times in these types of games you want the player to feel like the levels are relatively sight readable, at least once the player gets comfortable with the controls. Putting in more arrows and less dead ends would improve the gameplay. I like the idea of the portal gun, however I definitely tried to use it like the other games (LMB and RMB). Also allowing the player to place portals in this type of game could be really fun but also could result in the game getting stale as the fastest solutions end up becoming who can place the portals the fastest rather than using any of the fun movement mechanics. I didn't get much in the way of agent from this demo but I guess that part of the story can be added later. Also the narrative is giving the aesthetics of a crazy plot twist and the only thing the player is given is that sometimes the levels are in color and upside down. TLDR: I think this game has potential. The mechanics need refining, the level design needs to be clearer, and it needs a full story to make great.