Treasure Co., Ltd. is a Japanese video game developer based in Tokyo known for its action, platform, and shoot 'em up games. The company was founded in 1992 by former Konami employees seeking to explore original game concepts and free themselves from Konami's reliance on sequels. Their first game, Gunstar Heroes (1993) on the Sega Genesis, was a critical success and established a creative and action-oriented design style that would continue to characterize their output. Treasure's philosophy in game development has always been to make games they enjoy, not necessarily those that have the greatest commercial viability.

Shoot 'em ups are a sub-genre of action games. There is no consensus as to which design elements compose a shoot 'em up; some restrict the definition to games featuring spacecraft and certain types of character movement, while others allow a broader definition including characters on foot and a variety of perspectives.