Слизень

One slug ate grass, but he was tired of it. He wanted cabbage. Help him by going through different levels.
Control it with arrows. If you press the up arrow, the slug will crawl forward. If down, it will crawl back. If you press the left or right arrows, then it will rotate. More details in the game itself, in the "Help" menu. Beware of everything red. If you go off-screen, or touch something red, you lose. In case you lose, press Space. To exit the menu during the passage, press Esc. From the menu, you can continue playing, start a new game, turn on help, or exit.