This is one of the robot master stages from my second level pack, Megaman Adventure 2. One of my goals with this set was to work on stage aesthetics and enemy placement. I think all of the robot master stages are very enjoyable - but you will find the difficulty ramp up with the fortress on this one.

Stage Theme: Water Testing Facility - A very traditional water level set in a water treatment plant. The middle half of the stage can be rather difficult - consider taking Oil Slider if really precise platforming may be a bit too challenging.

Hidden Items: E-tank (no item required)
Secret room filled with ? tanks (no weapon required)

More information, other level packs I've made, as well as boss weakness can be found on this post in the MMM Discord: https://discordapp.com/channels/328222878489247744/1175826323256643594