This is a block erasing game
PuniSame in Hard version. Select the block type and press New Game button to start. There are also Easy version and Normal version.
If two or more of the same blocks are lined up vertically or horizontally, you can click to erase all the blocks that are lined up. The blocks above the disappeared part will fall down. When all blocks in one vertical row disappear, they will be packed to the left. The more blocks you erase at once, the higher the points.
Since there are some arrangements where it is not possible to erase all blocks, please enjoy with a higher point than erasing all blocks.