AirShip, don't delete and then recreate the original thread just to get the thread back up to the top. It's not nice, and it's frowned upon within the community.
And here's my review of this level:
Ballon Blast - 7.53/10
This is a good level, and out of all the possible level themes and gameplay styles for SMBX, a level which effectively has vertical autoscroll and has the player hang on to balloons for the majority of the level is very unique, if not, strongly unique. The whole level is built out of this gimmick which has been stretched to the limit, and the castle tiles go well with the spikes, which actually go well with the sky background to make the level feel like a ruins-based level. The Moon Coins were an interesting mechanic, particularly in this level in which it's make or break for most of the items, so the player has to get them or not get them at all, and I liked the idea of Ninjis that the player cannot jump on in this level, and the sideways Jumping Piranha Plants were a very interesting gimmick that I've seen in SMSE. However, the level is too hard - I couldn't even beat it after 20 attempts at it - the Grinders make the level really difficult as a lot of the balloons pass through the path of an oncoming Grinder, particularly if the player took the left path at one point in the level, and some sections are overloaded with enemies, leaving little room for error - one false move and you're dead.