They are easy to play, yet very fun and will help to improve their memory and concentration. For his varied difficulty level they are appropriate for all. Custom color themes. Custom game mode. Create your own puzzles. Jigsaw Puzzle: Classic jigsaw puzzles game. 7 difficulty levels (16, 36, 64, 100, 144, 196 and 256 pieces) 5 styles of piece. Memory: Classic memory game format. One or two players. Play for levels, topics or Challenge Mode. Multiple levels of difficulty.