If you always wanted to create your own retro Megaman levels or even look insde how such an engine would look like, well I got good new for you.
This video is showing you a Megaman fan game level creator (Megaman Maker) where you can play your own or other guys levels for free like in Super Mario maker
If you are a developer and want to have a peek inside a Megaman fangame engine there you have 2 options, the Megamix engine or the Mega Engine. Both are fangame engines and are free to use for private/fan releated issues.
Please keep in mind that you cannot use the images or the music in any commercial sense. Capcom has until now been very generous in allowing fan games of the Megaman IP so far, so please keep that in mind. The Megamix engine does not allow you to use the engine in any commercial sense but the Mega engine is open source, so if you use it, credit the producers of the Mega engine.
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