It depends what you are stuck on. You only need the light spray paint to clear it, if you don't have that then you need the bat to find it.
The blue wall with triangles on it.
The triangle symbol blocks have a switch that changes color.
I figured, but I can't find it anywhere.
Should I try downloading the new version to fix that?
The update is mostly just bug fixes, the switch is hidden inside one of the buildings.
