Dezaemon 3D (デザエモン3D) is a 1997 Japan-exclusive shoot 'em up game developed by Athena and published by Athena for the Nintendo 64. It is the third game in the Dezaemon series, which began on the Super Famicom in 1993. This game was the first installment of the series to be released on a 3D console and featured a unique game design in which players could create their own levels using a 3D editor. The game features a variety of levels and enemies which can be edited and customized by the player. The game also includes a variety of weapons which can be used to defeat enemies. The game also features a variety of bosses which must be defeated in order to progress. Players can create their own levels using the in-game editor, which allows them to customize the layout, enemies, and weapons. The editor also allows players to set the difficulty of the level, as well as the number of lives the player has. Players can also customize the background music and sound effects. Dezaemon 3D also features a variety of modes, including a practice mode, a challenge mode, and a two-player versus mode. The game also features a save feature which allows players to save their progress and continue from where they left off. Overall, Dezaemon 3D is a unique and enjoyable shoot 'em up game which allows players to customize their levels and weapons. The game's unique level editor and customization options make it an enjoyable experience for both experienced and novice players.