Just a battle stage (a very big one, if not the biggest) based off of Super Metroid from SNES.
It's really old, I made it many months ago, probably a year ago. So it's natural to find something uncommon or wrong placements perhaps, since it worked perfectly on 1.3. You'll find a special baby Samus Eater that you can use to kill your opponent. It will show up if you kill certain NPCs. And most power ups and stuff are having a Super Metroid-ish style. There's a weird looking Yoshi over there and also a propeller block shooting magma fireballs. Careful though, because in the deepest zone of Lower Norfair you can find a big amount of lava, it's a good place to use one of those mushrooms that can swap places between players. And one last detail is that Mario uses a cannon on his arm, similar to Samus, it's the first playable character I ever made.

Extremely big screenshot alert:

Bowser King of the Koopas - Custom (1.3 & any other)
Screenshot:

Grass 'n' Sky - SMB3 Styled (1.3/any ver.)
This one was pretty nice, with a SMB3 touch and no custom music.
Screen:
Sub Zero Battle - Custom (1.4.3)
Ahhhh, I loved this one. <3 watch out because the bullet bills in the water will complicate your life down there.
You'll love the music too if you like Sonic the Hedgehog games, also I only added a snow effect in some places because of lag, but it shouldn't be
noticeable for when you're playing (Lag isn't there anymore in case if you were wondering, of course). There are pipes that will take you to random areas,
and you'll find pretty cool power ups such as a electric flower that can kill most Bullet Bills, Volcano Lotus, Bob-Ombs and even Buzzy Beetles with a no gravity effect.
Screen:
Download:
You: "Bombs, bombs, bombsssssssss!!!"
Me: Did someone say "bombs"? if so then get ready for this explosive-cold battle in where you'll be basically seeing bombs everywhere, even in floating bubbles!
But don't get too excited for blasting your opponent with a bomb, because the arsenal of power ups is still there hidden in every place, and the Piranha Plants will
keep trying to kill you in the process, making this battle extremely hard for those who want to survive and be the winner. Also note that the music may sound a little louder than usual. Courtesy of Super Bomberman 2.
Screen:
No, it's not Dragon Ball Z, or something, it's just another challenge for you and your rival, a special forest filled with lots of surprises in where you'll be able
to fly with the F.L.U.D.D finding the most lethal items for your own benefit.
Screen:
Download:
Yeah another forest I guess... With some Terraria enemies that you would never thought they would show up on SMBX. Oh, did I also mention that there's lava and water too? with dangerous slides also. Every sector is too extreme so watch out if you really want to survive. Some of these Terraria graphics will show up in my future graphics pack also. Nothing else, just careful with the creatures, they will try to kill both players.
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