Kaizo Mario World

Kaizo Mario World
Gameplay from the first installment of Kaizo Mario World
Developer(s)T. Takemoto
Platform(s)Super Nintendo Entertainment System
Release2007–2012
Genre(s)Platformer
Mode(s)Single-player

Kaizo Mario World,[a] also known as Asshole Mario,[1] is a series of three ROM hacks of the Super Nintendo Entertainment System video game Super Mario World, created by T. Takemoto. The term "Kaizo Mario World" is a shortened form of the title Jisaku no Kaizō Mario (Super Mario World) o Yūjin ni Play Saseru.[b] The series was created by Takemoto for his friend R. Kiba.[2]

Kaizo Mario World features extremely difficult level designs on the Super Mario World engine.[1] The series is notable for deliberately breaking all standard rules of "accepted" level design and introduced many staples of later Kaizo hacks, such as placing hidden blocks where the player is likely to jump, extremely fast autoscrollers, dying after the goal post, and various other traps. These cruelties and the resulting frustration, as well as the skill level required, are both the purpose of the hacks and the appeal of any Let's Play videos made of them.[3]


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  1. ^ a b "The Palette of T. Takemoto and the Dark Art of Asshole Mario 3". 12 February 2013.
  2. ^ "自作の改造マリオ(スーパーマリオワールド)を友人にプレイさせる". 29 June 2008. Archived from the original on 28 February 2021. Retrieved 11 January 2015.
  3. ^ Wilson, Douglas; Sicart, Miguel (2010). Now it's personal: on abusive game design (PDF). Proc. International Academic Conference on the Future of Game Design and Technology. ACM.