Use arrow keys to move, x and c to jump (like an emulator), and try to get to the giant gate.
This is an alpha of Super Mario Bros. S. The sprites are from SMW, but the physics are from the original SMB. Sprites for the fireball and 1-up are by me. UPDATE v1.1: glitch where the Goomba would travel upward was fixed, as well as Mario being able to jump while facing backwards, glitch emerged where you're not able to duck. That issue, plus many more, will be fixed in the future. UPDATE v1.2: More bug fixes, but didn't allow Mario to duck yet. UPDATE v1.3: Ducking is now fixed, removed FireMario being active when you push a button. The next update will be huge.