Mega Man 2: Rockman 2 YJ 1.1

This is a Japanese version of Rockman 2 hack, you need to import the IPS patch into the original Rockman 2, not Mega Man 2!
This hack modifies the following:
-Level design
-graphics
-music
-boss, enemy AI
-weapons
-partial text
-some parameter adjustments
-Difficulty is harder than the original, but you can pass the level
-and more...

Enjoy this hack!

1.2 Update content:
- Fixed Bubbleman level boss door not working
- Avoided the problem of discoloration in Airman level

Database match: Rockman 2 - Dr. Wily no Nazo (Japan)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 108118F41E4CD9E375249D3A3B37A7360024FE64
File CRC32: C722D58D
ROM SHA-1: 3E9DC769E1B63E73834786EC7FE9EDE7E706C72F
ROM CRC32: 6150517C