I played the first stage of Dualspace, and I think the core puzzle concept is interesting. It makes the player think about how to move the character and how each action helps reach the goal.

The controls are simple, but I felt that the way each function works in actual gameplay could be explained a little more clearly. I understood it better after experimenting, so a short tutorial stage at the beginning might make the first-time experience more user-friendly.

Also, keeping the button functions visible somewhere on the screen could be helpful for players while they are thinking through the puzzle.

Overall, I like the idea, and I think a bit more guidance would make the game feel even smoother and easier to get into.