Honestly, to be a replacement for an act, it is quite well done, it has several mechanics such as making yourself small or changing gravity, among others that are surprisingly well done enough that they are implemented, and of course not to mention that song that plays background that is simply perfect.
Although returning to the mechanics of the level, the low gravity section and the lasers could be polished a little more, making it less of a difference in height between the ceiling and the floor, more than anything so that the player can have more range of sight and so that it is not so heavy to lose rings and remain floating until touching the ground.
Another thing that would not be bad to improve would be that there is not such a sudden change between mechanics, for example, in the section where there is no oxygen we pass shortly after without prior introduction the mechanic of becoming small, don't get me wrong, I like both mechanics and I think they are very funny, except that no one would expect us to become small, and have to get into a tube before they crush us, this could be fixed by simply making a short previous section so that we can already know that we have to look for a tube so as not to be crushed.
In conclusion: a very good level with a lot of potential, which only needs to polish its mechanics and improve one or another design aspect, even so it is still a very remarkable and entertaining level to play.