Mario in Unknown World (Beta 3)

Mario was traveling to somewhere and he found a mysterious island similar to Yoshi's Island. What can this island be?

Hack Source:smwc.me/1085500
Filename(s):💟 Mario in Unknown Island Beta 3
Categorized:🍄 General
Produced By:SMWBros
Tag / Brand:SMWBROS
Approx Date:2013-11-13
Binary Size:32 Mbit
CRC32 Check:489C80B2
SHA-1 Check:44ef31471c93b7d68cd1cde550a61b46b4ff8f47
Apply Patch: BPS (150 KB) IPS (357 KB)
Other Stuff:
Lunar Magic:Version 2.20 🔓
Level Edits:21 (est.)
First Level:105 - Unknown Island 1
Level Images(are auto produced and may have errors!)

Questions? Comments? Corrections? Contributions? Find Zandro on SMWC!
NO ROM REQUESTS. IPS/BPS patches are already provided for download.
I will ignore any requests for removal. Sorry if this affects you. :/