The whole kit: microcontroller in the upper left; LCD, lower left; controls, lower right. Controls include four directional buttons, select button, and power switch (barely visible on the right).
Blockgame start menu.
Blockgame scrolling in the initial board.
Blockgame blinking cursor (upper left).
Blockgame selected tile (capital D, row 2, column 3).
Blockgame cleared tiles after swap.
Blockgame no moves left.