I actually started this game with a super bizarre bug where I controlled both characters at the same time, and I was so flustered for a long time because I didn't understand how you had to do this xD Eventually when I found the swap button it got fixed and I could play normally though, luckily.
I really enjoy the cute visuals and the amount of content in the game which is quite impressive for such a short amount of time. I'm okay with the player controls for the most part, but the camera move is sooooo slow, especially on a gamepad. I would've loved seeing an option to control the camera rotation with a mouse, as it would've felt much more natural to me than using both hands on the keyboard. Seeing an outline on characters hidden behind walls would also be a great addition, because there are many moments where I'm not sure where my little dude is, and then I found out I've made him fall far down accidentally.
The puzzles are really well designed, and I personally love switching between two characters, each with different strenghts and weaknesses to solve puzzles, and I think the concept is really well executed here.