These are already possibly seen too, but i got feeling to look at these again.
Early Scrabania looking level. Abe uses also explosion ring to blew up mines away. And if you look closely there is well in background where Slig stands.
Early screenshot of Monsaic Lines. Flintlock looks different also.
I found these on GameFaqs PC screenshots of Abe's Oddysee, but images looks more like PS1 version for me. In both screen switch looks like PS1 version.