Jang Jae-ho (known as spirit_moon or moon) is a South Korean professional gamer of the popular Blizzard real-time strategy games Warcraft III and StarCraft II.

[1] Moon transitioned to StarCraft II and was without a team for a while, before retiring from professional gaming in order to fulfill South Korean military service requirements.

He defended his championship title in the finals of next edition of the league (which took place later that year), and lost to Park Se "Swain" Ryong who was at one point down 2 maps (the match is considered one of the greatest comebacks in WarCraft III history).

The eventual finals cast him against the player that knocked him out of the World Cyber Games, Tae Min Zacard, who he proceeded to beat 3–0.

Around the same time he won MBCGame Prime League V and became the runner-up of the 2004–2005 Ongamenet War3 TFT Invitational, losing to Korean prodigy Jang "FreeDoM" Yong Suk in the finals after being up two maps.

Throughout the rest of 2005 he would win the second season of the World e-Sports Games beating Kim Dong "Gostop" Moon in the grand finals, the MBCGame Warcraft League and several tournaments in China.

Despite several online matches the rivalry was not resolved during this time as Jang Jae-ho was perceived as having a "racial advantage" with his Night Elf vs. Manuel Schenkhuizen's Orc.

He has so far this year defended his MBC Game World War title four times, which is a televised series of show matches in South Korea paying out US$10,000 to a seasonal champion.

The next week he won his second title of the year the ESWC Masters of Paris beating his arch Rival Li "Sky" XiaoFeng in the finals.

Although, highly favored to win the ESWC title and solidifying his position as the world's best player, he was knocked out in the group stages alongside his teammate Grubby.

He recently showed that his loss to Grubby did not affect his confidence and managed to win the IEF 2008 tournament in Wuhan beating his arch-rival Li "Sky" XiaoFeng again.

With the tides turning in racial balance even Moon himself admitted that "Orc was imba",[5] but he has fought on becoming one of the only Night Elf players still able to withstand the apparently inevitable Orcish monopoly.

However his legendary status not only extends to his playing style but also for the content of his character, known and respected for being humble despite his level of stardom, and even revealed he still lives with his grandmother despite international success.

[12] He has since had little success in the GSL, but has done better in non-Korean tournaments, placing second at the Intel Extreme Masters 5,[13] and being one of the Koreans to play in the North American Star League.