Attached are my versions of Rescue Ranger Trolls! (Technically, it's a WIP level name which I never changed, happy for suggestions or to keep it.)
The original had the issue that you could dig under the trailblazer landing platform, redirecting them straight to an exit. In the attached archive I also included "B" versions which fix this. They are currently untested though, so it'd be good to for someone to review them.
@Dominator: I really like your multi-hatch versions, and I think they make great additions! I also appreciate the subtle differences in gap width etc, which add a bit of variety. The quirk with the possibility of building so that the bridge saves only one player does seem exploitable, though only with a lot of effort. I guess it'd be good to have a fix, but not crucial?
I had look at my version, and it doesn't seem to be possible there. Basically the chute is 1 lo-res px wide, but there is a slight asymmetry (both in the original and in the "B" version, in a slightly different way). I think it can be fixed, basically if everything is symmetrically around the 1 px chute I think everything should work out, but I haven't tested. No-one has noticed as of now, and I hope the asymmetry in the "B" version is just as subtle that it won't make a difference in practice. If it turns out to be exploitable in some way I'd try to fix it though.