Question: On what did the publisher of Tetrisphere primarily rely for its support?

full_context: Document 1: Nintendo Entertainment System: In the UK, Italy and Australia which share the PAL A region, two versions of the NES were released; the "Mattel Version" and "NES Version". When the NES was first released in those countries, it was distributed by Mattel and Nintendo decided to use a lockout chip specific to those countries, different from the chip used in other European countries. When Nintendo took over European distribution in 1990, they produced consoles that were then labelled "NES Version"; therefore, the only differences between the two are the text on the front flap and texture on the top/bottom of the casing.
Document 2: 3D Tetris: 3D Tetris is a puzzle video game developed by Technology and Entertainment Software and published by Nintendo. It was initially released for the Virtual Boy on March 22, 1996, in North America only. The game allows players to control multiple falling blocks, rotating and positioning them to clear layers in a "Well". The game is similar to other Tetris games, but uses a three-dimensional playing field as opposed to the traditional two-dimensional view. The game contains multiple modes and gametypes, as well as different difficulty settings and levels, which change different aspects of the gameplay.
Document 3: Nintendo Entertainment System: Several companies, refusing to pay the licensing fee or having been rejected by Nintendo, found ways to circumvent the console's authentication system. Most of these companies created circuits that used a voltage spike to temporarily disable the 10NES chip in the NES. A few unlicensed games released in Europe and Australia came in the form of a dongle that would be connected to a licensed game, in order to use the licensed game's 10NES chip for authentication. In order to combat unlicensed games, Nintendo of America threatened retailers who sold them with losing their supply of licensed titles. In addition, multiple revisions were made to the NES PCBs to prevent these games from working.
Document 4: Nintendo Entertainment System: In the longer run, however, with the NES near its end of its life many third-party publishers such as Electronic Arts supported upstart competing consoles with less strict licensing terms such as the Sega Genesis and then the PlayStation, which eroded and then took over Nintendo's dominance in the home console market, respectively. Consoles from Nintendo's rivals in the post-SNES era had always enjoyed much stronger third-party support than Nintendo, which relied more heavily on first-party games.
Document 5: Nintendo Entertainment System: By 1988, industry observers stated that the NES's popularity had grown so quickly that the market for Nintendo cartridges was larger than that for all home computer software. Compute! reported in 1989 that Nintendo had sold seven million NES systems in 1988, almost as many as the number of Commodore 64s sold in its first five years. "Computer game makers [are] scared stiff", the magazine said, stating that Nintendo's popularity caused most competitors to have poor sales during the previous Christmas and resulted in serious financial problems for some.
Document 6: Nemrem: Nemrem, known as Zengage in North America and Somnium in Japan, is a puzzle video game developed by Skip Ltd. and published by Nintendo for the Nintendo DSi's DSiWare digital distribution service.
Document 7: The New Tetris: The New Tetris is a puzzle video game for the Nintendo 64. The game was developed by H2O Entertainment and published by Nintendo, based on the latter's popular "Tetris" series. The game was originally released on July 31, 1999, in North America.
Document 8: Tetrisphere: Tetrisphere is a falling block puzzle video game for the Nintendo 64 (N64) console. Developed by Canadian company H2O Entertainment, a nearly complete version of the game was originally slated for release on the Atari Jaguar in early 1995. After Nintendo obtained its publishing rights, "Tetrisphere" was reworked for the N64 and released on the platform in North America on August 11, 1997, and the PAL regions in February 1998.
Document 9: Planet Puzzle League: Planet Puzzle League, known as Puzzle League DS in Europe, and as in Japan, is a video game for the Nintendo DS handheld video game console in the "Puzzle League"/"Panel de Pon" visual matching puzzle game series. In North America, "Planet Puzzle League" is part of the "Touch! Generations" brand; in Japan, "Panel de Pon DS" is marketed in the general "Touch!" brand. The publisher for the game is Nintendo, and the developer is Nintendo second-party developer Intelligent Systems, creator of the original "Panel de Pon" and its cult classic English-language adaptation "Tetris Attack". The game was released in Japan on April 26, 2007 in North America on June 4, 2007, and in Europe on June 29, 2007.
Document 10: Nintendo Entertainment System: Atari Games created a line of NES products under the name Tengen and took a different approach. The company attempted to reverse engineer the lockout chip to develop its own "Rabbit" chip. However, Tengen also obtained a description of the lockout chip from the United States Patent and Trademark Office by falsely claiming that it was required to defend against present infringement claims in a legal case. Nintendo sued Tengen for copyright infringement, which Tengen lost as it could not prove that the legally obtained patent documents had not been used by the reverse engineering team. Tengen's antitrust claims against Nintendo were never finally decided.
Document 11: Nintendo Entertainment System: A variety of games for the FDS were released by Nintendo (including some like Super Mario Bros. which had already been released on cartridge) and third party companies such as Konami and Taito. A few unlicensed titles were made as well. However, its limitations became quickly apparent as larger ROM chips were introduced, allowing cartridges with greater than 128k of space. More advanced memory management chips (MMC) soon appeared and the FDS quickly became obsolete. Nintendo also charged developers considerable amounts of money to produce FDS games, and many refused to develop for it, instead continuing to make cartridge titles. Many FDS disks have no dust covers (except in some unlicensed and bootleg variants) and are easily prone to getting dirt on the media. In addition, the drive use a belt which breaks frequently and requires invasive replacement. After only two years, the FDS was discontinued, although vending booths remained in place until 1993 and Nintendo continued to service drives, and to rewrite and offer replacement disks until 2003.
Document 12: Nintendo: Nintendo's first venture into the video gaming industry was securing rights to distribute the Magnavox Odyssey video game console in Japan in 1974. Nintendo began to produce its own hardware in 1977, with the Color TV - Game home video game consoles. Four versions of these consoles were produced, each including variations of a single game (for example, Color TV Game 6 featured six versions of Light Tennis).
Document 13: Nintendo Entertainment System: As the 1990s dawned, gamers predicted that competition from technologically superior systems such as the 16-bit Sega Mega Drive/Genesis would mean the immediate end of the NES’s dominance. Instead, during the first year of Nintendo's successor console the Super Famicom (named Super Nintendo Entertainment System outside Japan), the Famicom remained the second highest-selling video game console in Japan, outselling the newer and more powerful NEC PC Engine and Sega Mega Drive by a wide margin. The console remained popular in Japan and North America until late 1993, when the demand for new NES software abruptly plummeted. The final Famicom game released in Japan is Takahashi Meijin no Bōken Jima IV (Adventure Island IV), while in North America, Wario's Woods is the final licensed game. In the wake of ever decreasing sales and the lack of new software titles, Nintendo of America officially discontinued the NES by 1995. However, Nintendo kept producing new Famicom units in Japan until September 25, 2003, and continued to repair Famicom consoles until October 31, 2007, attributing the discontinuation of support to insufficient supplies of parts.
Document 14: Hybrid Heaven: Hybrid Heaven is a video game developed by Konami Computer Entertainment Osaka and released for the Nintendo 64 in 1999. This game is most notable for its peculiar mix of genres: it has aspects of both role-playing video games and action-adventure games. The designers had hoped to create a "new style RPG battle system". It is also one of the few Nintendo 64 titles to support a widescreen mode.
Document 15: Nintendo Entertainment System: The Nintendo Entertainment System (commonly abbreviated as NES) is an 8 - bit home video game console that was developed and manufactured by Nintendo. It was initially released in Japan as the Family Computer (Japanese: ファミリーコンピュータ, Hepburn: Famirī Konpyūta) (also known by the portmanteau abbreviation Famicom (ファミコン, Famikon) and abbreviated as FC) on July 15, 1983, and was later released in North America during 1985, in Europe during 1986 and 1987, and Australia in 1987. In South Korea, it was known as the Hyundai Comboy (현대컴보이 Hyeondae Keomboi) and was distributed by SK Hynix which then was known as Hyundai Electronics. The best - selling gaming console of its time, the NES helped revitalize the US video game industry following the video game crash of 1983. With the NES, Nintendo introduced a now - standard business model of licensing third - party developers, authorizing them to produce and distribute titles for Nintendo's platform. It was succeeded by the Super Nintendo Entertainment System.
ground_truth: first-party games
sub_queries: Who published Tetrisphere? Answer: Nintendo
Nintendo relied primarily on what for its support? Answer: first-party games