I've seen two completely different sets of pics for Bonk's Quest. Actually, there were 2 EGM's one right after the other that each had a Bonk game. The first one was showing off what they called Bonk 3: Panic Cyborg, the next EGM had what they called at the time Bonk 4: The Role Playing Game, or something to that effect. It has completely different pics of a Bonk RPG then what you'll normally find on the net. Frankly, it doesn't look that great compared to the pics that are easier to find. I recall being kinda bummed BITD, because the other set of pics appeared in mags before these crummy looking ones.
I still have that EGM somewhere, I don't think I ever took any pics of it, eventually if someone can't find the other set, I'll start digging around for that mag & take pics of them. Oh & EGM even included Bonk 4 in some kind of contest where you could win it....obviously no one won it
Found pics:
http://turbo.mindrec.com/unreleased/bonk4/Most of the pics there are ones that I believe are the real deal, however, the overworld shot in the upper right& the 2 at the very bottom I believe are fake, & were actually pictures of from a Genjin comic that ended up inspiring them to make a real RPG for him!
Oh, & I have a flyer from TTI advertising it as Bonk's Quest. I believe that was the last name they had for it, before it got canned.
Here's some more pics, once again, not sure what's fake & what's real
http://bonkzonk.com/game.ktn?Game=rpcghttp://www.pcengine.co.uk/Images-Artwork/ART-RPC_Genjin_Preview.JPG