1. Run the cart at this link: https://www.lexaloffle.com/bbs/?tid=41062
2. Pick up the hen with the web
3. Slam into the right side of the screen repeatedly

observe that part of the lines which make up the web are visible on the left (opposite) side of the screen

This happens in v0.2.2 of the BBS player, the native version, and the HTML export from the native version. It does not happen in the previous version.

I can reproduce it with this:

cls()
line(129, 60, 125, 68, 7)

Fixed for 0.2.2b, thanks @kittenm4ster

(was caused while optimising -- removing an extra safety test that should be superfluous when clipping is working correctly)