It's the DS version of "Bookworm," PopCap Games' title in which you form words by connecting adjacent letters on a grid, with mascot Lex the bookworm as your guide; the touch version adds stylus tracing for selecting letters. It's a simple, addictive word puzzle, faithful to the casual spirit that made PopCap popular in the PC era; it remains a solid choice for anyone looking for a no-frills lexical pastime.
If you liked this one