Really cool concept, very original interpretation of the theme, nice work!

The game needs clear instructions. 4D concepts are a little hard to understand as they are. Also, maybe a add a text that displays what dimension you are in currently.

Hey thanks for making the game! It was confusing at first, but once I got it I got invested in trying to beat the levels. My high score is 17 and it was pretty nice seeing how you incorporated changing in and out of the level! I did encounter a few things that I should note, the first being sometimes red cubes are hidden inside the environment and when they dash at me it gets me off guard. And that there's a glitch that both dimensions are on at the same time leaving me with empty space and enemies that I can hit at all times. Besides that, its a really cool idea!

It's not really easy to understand what's happening in the beginning, but after you get the hang of it, things start to work out.

Good job