MBSCIDE is an integrated development environment (IDE) for MBSC. What is an IDE, you ask? Well, you've actually been using one all along! Odyssey's Script Editor is a basic IDE with just about no features.
MBSCIDE is a script editor that colors your code as you type (like the code in these tutorials), making it easier to read. It also has pop-up code completion help that currently has a tendency to crash. The version of MBSC that MBSCIDE uses is in DLL form, so it does not need an executable or command line options. MBSCIDE was never released to the public or even completed. Don't bother asking for a copy of it. The arrow keys don't even work. -_-
MBSCIDE was created by Bugaboo using an open source library called Scintilla.