The first image is from the Genesis (U.S.) Phantasy Star II instruction manual.
Here's two pages of weapons from that manual.
The second image (on the Red Dam) is from the Hint Book that was originally included with the game in the U.S., and part of the reason it cost $79.99 when it reached store shelves here in the U.S. in early 1990 (despite the 1989 copyright)
BTW, check out this video filmed at a Toy's "R" Us in 1990, Sega Genesis game covers & purchase tickets.
25 seconds in, Phantasy Star II with price displayed.
https://www.youtube.com/watch?v=_96wWKzkp4s