there's a bug where you can lose 2 hearts on a single click. It's especially bad on mobile. Make it so that changing a tile to its existing color doesn't make you lose life.
I want to add simple help somewhere and maybe revamp the style a bit -- it's a super simple game though.
Clicking a solved tile is never necessary and can cause issues if accidentally clicked, so remove that feature.
Use arrow keys on the maps to trigger those directions, and press enter to look at whatever's centered on the bigmap. Indicate the center with some kind of colored high-contrast border, but only if you're not looking at your current location.
You should be able to get in between doors with the weird diagonal movement thing.
Disambiguate the redder purple with a red/orange bg and the non-cyan blue with a greenish gray bg. Alter door appearance and appearance on the maps accordingly. Use borders on the local map, and a border of the same size with the appropriate color for all other colors.