Super Bat Puncher is in another category at the compo, and in another league in general. It is not the first (unfinished) NES homebrew with multidirectional scroll, I think, but scrolling is definitely a rare thing in NES homebrews, because it seriously increases complexity of a project.
Level editor for Lan Master is available together with its source code at my website. It is a dev tool, so there is no docs for it.
The bug in Lawn Mower is fixed, hopefully. At least, I fixed the thing that caused the bug, and I can't reproduce it anymore. Files updated, download link is the same.
