A quick recap: developer Starfish SD began creation of Snow Battle Princess Sayuki as a sequel to Pocky & Rocky/Kiki Kaikai back in the early 2000s. When Square Enix bought Taito (owner of the Pocky & Rocky series) in 2005, Starfish SD dropped the license and finished the game with its own original IP. The game would eventually be released as Heavenly Guardian on PlayStation 2 and Wii in 2008. In Japan, PlayStation 4 and Switch versions came along as Snow Battle Princess Sayuki. The Switch version got an English digital release in 2019, but there hasn't been an English PlayStation 4 version until now.
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