SMB3 - Poisoned Fortress

I had this concept in my head for a bit now and I wanted to execute it. This stage is called Poisoned Fortress, where like in New Super Mario Bros. U (which this level is inspired by), features the dreaded poisoned water seen in World 5 (Soda Jungle). The player must be careful while maneuvering around koopas, ptooies, cheep cheeps, roto discs, and goombas because one touch of the water and you die instantly. But wait, it can be swam in? Forget logic right? Fight Boom Boom at the end of the level.