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?

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 (4 MByte)
Apply Patch: BPS (150 KB) IPS (357 KB)
CRC32 Check:489C80B2
SHA-1 Check:44ef31471c93b7d68cd1cde550a61b46b4ff8f47
Header Info:@32K: 32Mb(+16Kb) LoROM+SRAM V1.00 L01-NTSC/US 578F/A870
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!)