Press space to see all of the variations. The first one is Mario bros., then Mario bros. 3, then Super Mario World, then New Super Mario Bros U.
Credit to @OliverScratchpaste for hosting the contest. The poison flower is like the fire flower, but instead of bouncing, the poison slides on the ground. This can be used to hit/break things that Mario wouldn't normally be able to reach, such as a block under a row of blocks.
