This is a ROM hack of the NES game "Moai Kun." ROM hacks are modifications made by fans to the original game's code, altering aspects such as gameplay, graphics, or adding new content.  The addition "[En by Suicidal v1.0]" indicates this version is an English translation patch created by a user known as "Suicidal," version 1.0.  The original Moai Kun game was a puzzle game; this ROM hack likely maintains that core gameplay but offers an English language experience, making the game more accessible to a global audience.  The changes Suicidal made are not detailed but could include translating text elements, altering menus, and improving compatibility with modern emulators.  The original game's publisher is unknown and the hack was not made by the original publishers, but rather a third-party.

Moai Kun (Japan) [En by Suicidal v1.0]

Mixed Up Mario Bros.