Nice mix and use of the theme, I'll comment based on my experience with version 1.0 (since I don't know if version 1.1 is a post-jam release, which could be due to the tutorial addition, and the improvements on the UI and the jumping mechanic). But excuse me if I'm wrong.
It was hard to understand what I was doing at the beginning because of the teleportation machine. I liked to have lives because it allowed me to take risks to learn the rules of the game. I saw one can jump on the numbers, but I couldn't use that to get to the top of the cubes, which would have been useful to mark 4s and 3s. I liked the visual style of the game, more than all the main menu, and I missed it didn't have background music.
Although the idea is interesting, I asked myself why you didn't use the third plane of the 3D view to re-design minesweeper, that could produce some exceptional rules to develop. Even so, I had a good experience playing it, and I hope you can reach the goal on your Kickstarter campaign.
Finally, thanks four your comment in our game.