Griddler lets you play Nonograms, Pic-a-pix's, PictureLogics etc. etc. A set of default puzzles are included with Griddler in the PlayTsunami.pdb file. On the main screen select a puzzle from the available puzzles. First select the puzzle database and then the puzzle. Then press Info to get brief information about the puzzle or press Play to play the puzzle.
On the game screen you have a few controls - from left to right:
- Switch between low and hi display
- Erase square
- Fill square
- Mark square
- 4 navigational arrows (to move the grid left, up, down or right)
- The current pen
- Quit button
If a puzzle doesn't fit the screen you can either tap the Switch button or you can drag the playfield around. The correctness of the puzzle is validated while playing. If you feel like forcing a validation you can do so from the menu.