Pretty neat concept! Switching between 2 different controls schemes for 2 characters definitely takes some getting to use to and I kept forgetting the control scheme, but getting the in flow felt good! Though whenever I forgot which keys did what or had to switch to using the mouse at the end of each stage, did break a little bit of that flow state.
The game's aesthetics look overall quite nice! It's got a neat cohesive visual style, though I wasn't quite sure if there was an underlying theme with some of the visual motifs.
Also, this is minor, but I wish the characters had more appropriate names, since I kept forgetting which one was Bob and which one was Joe. Maybe something like X-Ray and Yankee, coming from the Nato alphabet, would help in remembering!
Fun beyond that, though admittedly I'm not too much into puzzles, I did enjoy it for the short time that I had played :D