Shift-click the green flag for turbo mode. Turbo mode is recommended but not needed at all. Left click to check a tile, space to toggle a flag. You can click the smiley guy or the green flag to start over. Space + Click to Chord
It is set up to have around 16% mines. Made in about 3 hours. You can change the size of the board and the % of mines if you see inside. No larger than 17x17 because of scratch's clone limit.