First of all, well done on releasing and meeting the game jam deadline! :D
I really love the art-style and UI. Feels really polished and very retro. Also a great take on minesweeper and a great fit for the jam theme.
I really like that there was more than one 'enemy'/way to die. Made things more interesting.
My only comment would be that for this style of game I would love to be able to use WASD. The mouse clicking (especially on already cleared blocks felt a bit repetitive).
Well done!