Invincible Iron Man Gagaga-In is a cancelled “80’s giant robot fighting action game” for the Virtual Boy, that had been in development by Hudson Soft and the planning and contract development group Eighting. It was planned to release in Japan roughly a year after the system launch.
The game has never been officially announced, but images of a design document and an EP-ROM cartridge containing a sample build have been shared in 2018 by a former Hudson employee.
Dream Kombat is a Japanese 2D fighting game, featuring characters from Yume Nikki and its fangames. The concept (and some visuals) are based off the Mortal Kombat fighting game series.
Based on the Dragon Ball Z series, Search Battle allows you to draw or use stamps to create a fighter to battle characters from the popular series. The game appears to generate battle stats for your drawing seemingly at random. Other design/manga carts can be mounted and used for additional stamps in addition to those included with this cartridge. The package also contains very simple animation and drawing programs that you can mess around with if you insert the cartridge by itself with no addons.
Dragon's Heaven is an incomplete and cancelled fighting game for the Neo-Geo. The game was being developed by Kengo Asai, who had previously worked on Voltage Fighter Gowcaizer and The Last Blade.
An online robot fighting simulator where you can build your own character from 16 modules. You're able to create your own strikes and use them all (up to 32) in combat. Each module has its own health points and can be torn off. But you can fight without arm or leg.