So after I downloaded this level and then open it with SMBX I get this error:
So I went through the folders and see that the folder and the path to the music in SMBX are different, resulting in that error message to pop up and also causes the music to not play ingame and in level editor which means you have to manually rename or replace the music path so it will work afterwords.
Anyway, onto the level itself. You traversing through light blue dirt with green grass and clouds and you already start with a blue propeller block at the beginning, jumping very high up. However there's only one of them and not two, makes the second player either get stuck down there or have to do tricky movements with another player to get up there (as in, jumping on top of eachother) and such. I know 2 players are a rarety here but even so, whenever 2 player mode via online happens, the second propeller block will be a necessarity to do so. I find the design of this level pretty cool as in there are like multiple ways to discover secrets and such but for the first time playing it I didn't find all of them, only most of it like I had to jump at the right side to get a dragon coin which I didn't do that on my first run because naturally I think anywhere where I fall I get to lose a 1UP but this level thought the opposite at the first section here. Also you put like no blocks at the top of the screen as in there's nothing that blocks you to go on top of the level outside the boundary. Make sure to put like 2 blocks on top of it so any player won't go over the level and such. Anyway, moving on to section 2 with clouds that acts like springboards. It's a neat concept in this level to have but their hitbox is huge width wise which is weird. I do like your coin placements in this level. Later on there are some weird spots in this level:
Those are SMB3 Tanooki Blocks as in once you use your Tanooki Statue ability while having a Tanooki Suit those blocks turn visible but you only use those 2 in this spot and also it's only used to prevent from jumping from left to get up there which I find it odd to do to prevent players to get up there. I'd rather just remove those blocks since you can get up there multiple ways anyway like flying and such instead of just a vine block that is invisible at the bottom. Also another thing:
Some random dirt blocks are at the bottom for some reason and there's one that's outside of it which prevents players from falling down at the cliff and only lose a 1UP once you go to the left 1 block a bit which is also weird. Anyway moving on at the halfway point of this level, apparently you add a invisible warp before the midway, leading you to the beginning to the level for some reason. I guess it's a nice thing to have that if you miss the midway, instead of losing a 1UP you lead to the beginning of the level if you hold the down button but it's still a bit odd to have that in the first place. Anyway, moving on onto the next section where a random super leaf is just falling slowly going down. Exiting the pipe and trying to grab the leaf is impossible to do so you have to go up first and then fall down again:
Also yes that gif briefly shows that there's a secret at the left at the wall where you can get another dragon coin which is nice but not easily notifiable at first until you actually jump against the left wall like that and such. Enemy placements were alright but I think you can add like a vertical moving para-koopa or so at the jumping area at the previous section after the halfway point so you can have a bit of a challenge to accross it instead of just nothing till the end of the section. Further on after the vertical section where you get to the end there's something odd on there too:
That goal tape doesn't go completly at the top because it's not placed at the complete top like the usual goal point does on most of the other SMBX levels. Also once you obtain the goal you just running against the wall... I don't know if that was intentional or not but it's a bit weird as of how it's structured like this.
I find your level pretty cool and I like how you made the whole level with a couple secrets to discover and such and I had fun playing it but several issues were found in this level aswell. I'll rate this level a 7/10.
