Hello! Made an account just to be able to comment:
First of all, I am obsessed with this game, I adore it so much. Thank you!!
It took a bit for me to know what the boss gimmicks were, but once I went through a few tries, it was pretty easy to figure out!
There are two things I struggle with:
1. Flag visibility; I love using flags for myself, but for some reason I am having a hard time with the chosen colour scheme to distinguish them from the background. It would be lovely if you could offer the ability to customise or adjust the colours of the numbers and flags slightly for accessibility.
2. I really like the 'extended damage area for mines ' modifier, but unfortunately once you set one off, and you use the 'count exploded mine' setting, I get horrendously confused afterwards. Of course a part of that is on me for not remembering exactly where I had clicked previously, but perhaps you could implement a slightly different hue for the chain bombs so one can recognise the 'origin' bomb.
Either way it's a wonderful game, and I'll make sure to recommend it whenever I can ♥