On most counts, this is a classic Tetris,
just turned by 90°. There are a few non-tetramino pieces, like the
three-in-a-row you see in a screenshot above, and there are rogue
pieces
that cannot be maneuvered. That's why the salmon-colored
S-piece sticks out so awkwardly. The pieces are not color-coded, they
have random colors. As with all games by
Adrian Millett I have played
so far, there is no title screen, just the usual shareware
messages.