My Word Coach drills into your head unusual words you don't know (bauxite, anyone?), and it helps you remember odd words you know but never use in conversation, emails or living wills (doleful). But it is not just a spoonful of medicine. It is a game, featuring more than a handful of so-called fun exercises, and since I'm an occasional egghead, they are indeed fun to me.
My favorite mini-game in My Word Coach is called "Block Letters." It acts like Tetris. The screen fills up slowly with letter blocks. You click those blocks to spell words, then the blocks disappear. If you don't spell enough words fast enough, the screen overflows with unused blocks, and you kind of lose, sorry.
In the mini-game "Safecracker" you read a word's definition - for example, "In a wild and evil fashion" - then you play a quick game resembling Hangman in which you figure out what that word is and spell it. (Demonically is the answer to that "wild and evil" clue.)
I recognize most of the words in My Word Coach, like decipher, dispirited, atrium and baritone. Quite a few words and definitions are no-brainers, like sentinel and childhood. But overall, you have a good instruction game here.