Kersploosh!

It contains ten levels and ten objects to choose from, with the player attempting to reach the end of a stage for a high score. The three developers at Poisoft wanted to design a game using the stereoscopic 3D of the 3DS to emphasize depth, creating a game where the 3D display enhances the depth of each well. The game was released on the Nintendo eShop in Japan on June 7, 2011, in Europe on February 28, 2013, and in North America on March 7, 2013. Kersploosh! Received mixed reviews, with praise for its fun gameplay, presentation, and 3D effects, but was critiqued for its limited gameplay depth, short length, and lack of online features. A sequel, was released on April 22, 2015 exclusively in Japan, which added new objects and levels.

• Developer — Poisoft • Director — Akihiro Nakagawa • Producer — Hiroshi Ishikawa • Composer — Tomoshige Komine • Designer — Masahiro Kitago • Genre — Action, puzzle • Modes — Single-player • Platforms — Nintendo 3DS • Programmer — Akihiro Nakagawa Hiroshi Ishikawa

• Illustration — The player controlling a stone that falls down a well, avoiding obstacles such as wooden planks. Kersploosh! is an action puzzle video game game based on the premise of what an object might see when it is thrown down a well. The goal of the game is to steer the player's chosen object to the bottom of the well as fast as possible without it breaking. The player can select various objects to throw down the well, including a stone, iron ball, bouncy ball, jewel, watermelon, and a matryoshka doll. There are ten objects in total, with some being unlockable. Each object has unique stats for speed, boost speed, and health points. The bouncy ball, unlocked from the start, has a slow falling speed with infinite durability, whereas the water droplet, the final object unlocked, has the fastest fall speed that breaks in one hit. Before each level begins, a cutscene plays featuring humans throwing the selected object down the well, giving exposition on why the object is being discarded. When falling down a well, the player can steer their object in order to avoid obstacles such as wooden planks, food, cannons, and other household objects. Some wells contain environmental hazards, with alternate paths containing different ways of reaching the bottom. Giant doughnuts can be passed through to give the object a speed boost, while balloons can be popped to recover health. Additionally, fake doughnuts appear as flat wooden platforms with no hole to pass through, stopping the player's descent. There are ten wells with their own high score leaderboards, and players are able to exchange their high scores via StreetPass.

Kersploosh! was the first game on Nintendo 3DS developed by Poisoft, as well as the first game they created in collaboration with Nintendo. It was also the first game Poisoft released outside of Japan. Producer Hiroshi Ishikawa and director Akihiro Nakagawa, Poisoft's CEO, served as the two programmers, with Masahiro Kitago as a designer. After receiving information about the 3DS, Poisoft set out to create a game that highlighted the system's stereoscopic 3D effect. Nakagawa originally proposed a design concept in the form of a fancy poem, asking the question of what is inside of a well. With this concept established, they created a racing game with the core theme of objects falling down a well, adding obstacles that accelerate and decelerate the player. The development team struggled implementing physics simulations when breaking objects while optimizing the game for the 3DS. Ishikawa and Nakagawa got into arguments over how the player should accelerate, opting away from using a button on the controller. Occasionally, the three-person development team couldn't agree on which features to include, but would eventually persist and find one person's idea to agree on. The techno soundtrack was composed by Tomoshige Komine, a frequent composer for Poisoft and Vocaloid producer who works under the pseudonym "UtataP". In Japan, the game released alongside the launch of the Nintendo eShop on June 7, 2011. Poisoft were first contacted by Nintendo of Europe to translate the game overseas, but since the development team found translation difficult, Nintendo handled the distribution outside of Japan. The international releases were announced in a Nintendo Direct on February 14, 2013, two years after its initial launch. In Europe, Splash or Crash released on February 28, 2013, and in North America, Kersploosh! released on March 7, 2013. A sequel to Hyu~Stone titled New Hyu~Stone was released exclusively in Japan on April 22, 2015. Following the sequel's announcement, a Nintendo 3DS Theme for the first game was released on March 11, 2015, and a soundtrack CD was released digitally on March 25, 2015. The Hyu~Stone & Takeyariman Original Soundtrack contained thirteen songs from Poisoft's Hyu~Stone and Takeyariman, with the song titles being suggested by fans. Poisoft would later develop Vroom in the Night Sky, which would become their second video game to release internationally after Kersploosh!.

was a follow-up to the original released in Japan on April 22, 2015. The game was announced at the Poisoft Conference 2015 Spring on February 27, 2015 through the website Niconico. It featured more objects to use and multiple new wells to play, 26 objects and 43 wells in total. The amount of rankings saved to the system have been expanded, and the player can set a favorite object for each stage so they can decide what StreetPass data is sent to other users. Additionally, a new option to adjust the stereoscopic 3D vision has been added, and the levels are selected on a world map screen. By successfully completing all of the new wells, the player can play a secret well recreated from the previous game. From July 9—July 10, New Hyu~Stone was presented as a Nintendo indie game at the fourth BitSummit event. Time Attack tournaments for the game were also held in celebration of Poisoft's 8th anniversary. New Hyu~Stone received similarly mixed or average reviews according to Famitsu. Tsukui Kazuhito of Inside Games described it as a simple game with great use of the 3D effect, praising the compositions of Tomoshige Komine. Nagayoshi Hidetaka of Inside Games similarly praised the soundtrack, claiming they conveyed a thrilling sense of speed that complimented the addictive gameplay. The game debuted at the fifteenth position on the Japanese eShop sales charts, and remained among the best-selling games for five consecutive weeks.