For now, I like pixel style. If I change my mind I might contact you 
I don’t really spawn many ISMCs, you should not have too many of them. Also don’t have problems with the collision, at the moment all blocks constantly have collision enabled but that costs like 0 performance I think. You probably did some crazy stuff if you had problems with collision performance 
I have a ideas, but let’s see how they end up Depends mostly on others.
Use 7zip, all other software seems to dislike the zip file
Yep, saw that! Also got “let’s plays” from CaptainSparklez and AntVenom.
It’s not released as source.