This WonderSwan game is likely a part of the "Mobile Suit Gundam" series. The gameplay may include simulation elements or strategic combat. This title was most likely produced and published by a Japanese game company. The game's technical aspects, such as graphics and sound, would have had limitations due to the WonderSwan hardware.

Mobile Suit Gundam MSVS (J) [M][!]

Mikeneko Holme's Ghost Panic (J) [!]