Quick question.

I just bought a very good condition G3 iMac (Summer 2011) with a 600Mhz Processor. Quick question about it. Do they unlike most iMacs, does it have a spare AGP port that I can add a better GPU in? I wanna get into old powerpc classic gaming, but it has a ATI RAGE 16MB card and one of the games (Earth 2140) requires a 32MB card. If not I can deal with it.