Description
Kaizo Mario World, also known as Asshole Mario, is a hack created by T. Takemoto for his friend R. Kiba. It features extremely sadistic, unique and groundbreaking level design. This is also the hack that started it all, since the kaizo genre wasn't existent beforehand. The literal translation of "Kaizo Mario World" is "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", or in plain English, "Making my friend play through my Mario hack (Super Mario World)". Kaizo is a rough translation of the word "modify" or "change" in Japanese.
Notes
This is the original Japanese, not the English translation. The original Kaizo Mario World was distributed as a patched headered SNES rom in SMC format on June 14, 2007. The original video showing this hack was posted to Nico Nico Douga on June 9. This patch from SMW Central is a BPS which patches the modern unheadered version of the same rom and the resulting hack will be an unheadered match to the original 2007 headered release.
File metadata
Patch file
A patch file is attached — only an admin or verifier can replace or remove it.
Also available as
Other compressed or container copies of this exact file — say the patch produces an .iso and you've separately got it as .rvz or .chd. A qualified reviewer who drops a matching copy verifies it automatically; anyone else can still drop one just to check their own copy.
No alternate formats registered yet.
Base ROM required
Verifications (1)
16 days ago
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DAT entry
Kaizo Mario World (v1.0)
Approved Sep 26, 2026
Audit trail
submission edited by DarkBlood159
4 days ago
submission approved by DarkBlood159
8 days ago
submission verified by DarkBlood159
16 days ago
submission created by deletableman
16 days ago