On a side note I tried some levels by other people, most notably a SMB3 style level set (that actually is identical to SMB3 with some exceptions and a SMB1 level set with SMB3 graphics. Something to keep in mind in Oiram CE when making levels is that each level can only be 1 single map, so if you're gonna include bonus rooms in your stage, put them above the rest or on the side where it can't be reached, if possible. Otherwise when you fall into pits this is what happens:



Those SMB1 and 3 level sets can definitively do the job for those who really wanted the original levels, though. By the way, you can download them at https://github.com/Pieman7373/Pieman7373s-Oiram-Packs and https://tiplanet.org/forum/archives_voir.php?id=795982

Another thing is that enemies cannot be placed on a block, so they leave a sky square behind when you do so. Ideally I think it's ok if your maps have the same sky color everywhere. And you can probably just use those blue blocks to simulate the sky when possible, for example if the first room is just a pipe to enter an underground area.

My level pack now has a 4th stage!



The GIF is choppy because I wanted to keep its file size down. It's a castle level for the most part and when you beat Reswob almost all blocks disappear, unlocking many portions of the level. I bet @MateoConLechuga did not expect many people to use that many red unlockable castle blocks in a single level

Here is a download link for my level pack

loop 10/10, just wtched it 3 times without noticing
also how come you spend more time on beating a stupid coppa than on beating bowser? xD

but really nice level

New Level, if you can get to it.
Bowzah Battleh Nexxt
(I 'm not having a stroke)

Super Mario 3 Levels 1-4 are here! I cannot add any more because of the absence of blocks/tiles needed to create 1-5, as said in the oiram post I did. ENJOY!

(excuse my double post)

(Fixed Stuff)(AAAAAAND Again) +1

I updated the links so ALL levels are possible 

You can use the modify button, you know I'll try your level updates soon.

level 3 is impossible without the recent update

Do you mean your level pack?

yup

Well, in your level pack, none of the levels were possible to beat anyway (they are awesome tho, but lol they're hard)

they are the deal m8

On a side note, I tried making a water level in which all the walls were made of lava, but it turns out that the collision box for lava is pretty lax about how far into the lava Mario can go, so that won't work. On the other hand, I can always try to make a water level where all walls are jellyfishes, but make sure it's the first stage and has no power-ups.

How did you do that multicolor background ??

I used those big plain-colored blocks that are white, green, blue and orange like in the first level of Super Mario 3, but I only used the middle portion of them for the most part. For the pink, I simply made the sky pink and for the black, I used the level ending blocks.