Isu-san,
Thank you, really like compact, fun games, that make me think especially if my time will only allow a few minutes or more, so I really liked this. I have to admit level 3 was a bit difficult and I have not solved it yet. I am a new game dev, so not sure what to call it, tutorial maybe? I just saw the instructions listed below the game entry, thank you. I think I also like some games to have some initial pop-up phrases about what is happening, explaining what I am playing and the pieces. My apologies, It's my fault for not reading instructions. :/ ~ maybe after a few pop ups the explanations could stop and let me figure stuff out? Do I need to Exit and restart every time I box myself in? It's like an IQ test. This one will have me returning. I must be so dense. I followed you on X too. Many respects.