The sewer

[kamillentee]

After first deep where you have to drag your mate with jetpack there's the biggest spam bug I ever saw. You can't go through jetpack off without getting at least 4 server messages. If you jump or move back and forwards you get 10-15 messages or more.

And to make it worse jetpack off is just marked for 3 tiles and not for 40 like it is now.

[Index]

The whole map is a mess :o
Countless layers, an unused tileset and not visible background quads.
I tried to fix a few things, including the part you mentioned (jetpack on in game layer and jetpack off above it with front layer lol)
The map is still not bug free imo..