Kaizo Mario World (with Custom Case):
- Game Cartridge
- Custom Case
Kaizo Mario World features extremely difficult level designs on the Super Mario World engine. The series is notable for deliberately breaking all normal 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. This cruelty and the resulting frustration, as well as the skill level required, is both the purpose of the hacks and the appeal of any Let's Play videos made of them.