Puzzle
Puzzles of all sort (other than those using cards) whether based on a physical board game or older concept, or a game where a puzzle is the primary gameplay mode.
3 of a Perfect Pair
5x5 Go! Go!
A Midsummer Daytime's Dream Plus
AI Go 3
AI Shogi
Arctic
Around
Asami-chan's Picture Diary
Block Kuzushi
Blockout
Bomber Quest
Calcutta
Ching Hai
Chitty Chitty Train
Color-kun Da!
Crim
Crystal Quest
Cycles Plus
Cycles Plus Plus
Devil Chain 2
Devil Chain 98
Dodeka Maze
Flash Chase
Gemini Snake
Gomoku Narabe 5M
Hai-Amam
Heart Ease
Kanth
Kitty World 2
Kurunpa!
Kyuukyoku Hen Maboroshi - Batorugyaru Saori
Mame Game
Marble Cooking
Marine Buster
Marines
Marple Magic
Marubatsu EXE
Master Hand
Migrain
Moldy World
Moldy World 2
Mon Mon Shinkei Suijaku 2
MZ3
Oskar's Cube
Panic Bomber
Pazz29
Plus
Princess Confusion
Puyo Puyo
Puyo Puyo 2
Ranma Ougi Jaanken
Record of Strange Beast War Kasutami
Rushing Anethesia Girl Alice
Sailor Sweeper
Scoop-kun
Sgeiyers
Shikinji
Shuuchuuryoku Yousei Gibs Konjou Hen
Snowman
Super Perfection
SWAP
The Incredible Machine
The Red
The Yellow
Twinkle Twins
Twins
Urawa
Usagi
Vectors
ZuraZura Island