Mattel's Ski Slalom (1980, LED, 9 Volt, Model# 8290)
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Ski Slalom shows a copyright of 1976, but it wasn't released until 1980 (the 1976 copyright is probably for Auto Race, which this game is based on). The game play is simply Auto Race reversed, you have to pass the blips heading to the bottom of the screen, instead of the top. Otherwise, exactly the same. I've been told it was primarily released in foreign (non-US) markets, that may add to it's rarity.
Do I have this? Yes, boxed (new).