Opoona

Throughout the game, Opoona will acquire a variety of licences for different jobs. Whilst some are mandatory for story progression, most are optional and add to the customization of the players game. The game can be played one-handed using just the Wii's Nunchuk attachment, but the Classic Controller can also be used. In battles, flicking the Nunchuk's analog stick will fire a projectile, the trajectory of which can be changed and adjusted according to the situation. The style of play is referred to in-game as the "Active Bon-Bon Battle System" and all actions occur in real time.

Before the events of Opoona, the planet Landroll was impacted by a large meteorite composed of crystallized dark energy. Half of the star, once lush and verdant, died from the impact, becoming the Deadlands. Life for the survivors changed drastically; the impact caused a shift in gravity, causing the sun to become tidally locked to the planet. Species died and vegetation withered in the heat; mysterious creatures, known as Rogues, emerged from the meteorite and began to attack people.

Humans eventually built sturdy glass domes over Landroll's surviving cities. Sanctuary, an island floating above the northern pole, was unaffected and habitable areas outside the domes became the wild lands.

Opoona was developed by ArtePiazza, a Japanese game company responsible for creating and porting games in the Dragon Quest series for Enix. Artepiazza was asked by publisher Koei "to create fun and unique visuals that convey the enjoyment of an RPG in a simple fashion" in place of using state-of-the-art CG and hardware technology available at the time of the game's production. Rather than utilize the traditional "single hero" or "chosen one" motif of RPGS, the staff members at Artepiazza emphasized the importance of relationships and family in Opoona, with Sachiko Sugimura explaining that every single person means something and that the world grows and changes in accordance with the loving relationships among all people, instead of depicting the main character only as a special existence. Artepiazza wanted Opoona to appeal to family members of all ages instead of just children.

The team designed the game so that it may be played with the Wii Remote Nunchuk attachment alone because of its limited control input that allows the player to casually play the game one-handed while relaxing or eating. The developers initially wanted to exclude any other control options, but decided to allow users to use the Remote or Classic Controller if they prefer.

Opoona suffered low sales upon its release in Japan. The game was released on the same day as Nintendo's Super Mario Galaxy, a title that Artepiazza and Koei did not foresee as competition being in a different genre. Opoona received a positive review from Japanese magazine Famitsu, which gave it a score of three eights and one seven for a total of 31 out of 40. The publication credited the characterisation, length, music, and difficulty level.

Elsewhere, Opoona received "mixed" reviews according to the review aggregation website Metacritic. Eurogamer praised the control system, pace and presentation, and said "it's charming, strange and often fun, but too shallow and stretched out".