Very fun game! It's like if A Link Between Worlds and Metal Gear fused into one. Very enjoyable time, loved the 2D sketch of the protagonist when they were in the wall especially. I can see this having a lot of mechanics that play off the core mechanic in interesting ways - like walls having spotlights on them that make them impossible to sneak past when 2D, or having push-able blocks that you can push together or apart to make new or destroy paths accessible in 2D. Would love to see more.