The Sun Crossword Challenge operates like a traditional crossword puzzle "but with a twist", says the game's developer, Mercury Games.

"Like the daily crossword in The Sun newspaper, each puzzle will have two sets of clues - coffee time with quick clues and cryptic with longer, more brain teasing clues. The game has more than 1,000 crossword challenges to test the player's mind."

The player writes their answers directly onto the crossword, which features character recognition, using the intuitive Nintendo DS stylus. If the player gets stuck, there is an optional hints section.