
Trouters.
From SMB2, as usual.
Right now, SMB2 is just the game I'm playing. I usually like to create things or add things after the game I'm completing, usually because the best elements of the game are most evident at that point.
Editing sprites and adding frames is also a lot easier than creating new sprites, not to mention how I've been recycling colors all along.

That one bug that the king of World 2 turned into, during the events of SMB3. As suggested by Renhoek.
I don't know what to do with it.

Bouncy things. I meant to have recolors, but sisters cut my computer time short.
Edit:

I never made a sheet for this, and I added the pink shell.

Finally got around to making the full cobrat sheet.

And those mystery boxes from SM3DL/SM3DW.
Making the warp boxes now.
Edit:

Bouncy things recolors like I said.
Also:
New Poll.
Poll 8?
Question 1: When the item inventory is activated, should the item jump out from in front of the player, or should it just fall from the inventory slot?
Also consider multiplayer: Do players have a shared inventory (with extra slots, like in SM3DW) or individual inventories?
The SM3DL route works well for multiplayer, and SMW route works well for singleplayer.
Question 2: Speaking of what may be a cluttered HUD and multiplayer, here's the other thing: Should all players share lives?
Question 3: Also, the lives counter icon/text: Should it be the M icon from SMB3, or should it be the "Mario" text from SMW? (Or should it be something else, like hats? (For Yoshi / Toad, it'd be something like a mushroom or an egg))
Pay attention to the top of the screen here.
Question 4: Should there be additional moves in the game, like rolling from SM3DL/SM3DW, or ground pounding? (No wall jumping)
Question 5: Thanks to the community of SMBX, I have access to
nearly every power-up form of every character. Should I make use of that? (If I do, then it basically means that one of the more original concepts of combining power-ups is thrown out- but the concept of upgrading power-ups will remain.)