Gonz and Natas are co-credited with handrail boardslides. Natas was documented first trying it at the '86 Oceanside street contest (Johnee Kopp had the first photo in a Town and Country ad, same year). Julien first front board handrail. Carney first backside lipslide.
Gonz's stalefish was named in homage to the Stelmasky grab invert. I think ollie shifties used to be called Gonz-ollies. But most Gonz firsts weren't named after him: 180 nosegrind and 180 50-50s on handrails, nose blunts, switch methods on launch ramps ('87 Savannah Slamma contest), darkslides, noseslides (first I'd seen at least, definitely first on a rail), most of those curb tricks in Video Days are Gonz firsts--some haven't been done on anything bigger since. He also adapted many vert tricks to street--the precursor to modern ledge and rail skating: ollie to axle stalls, ollie (frontside and backside) to tail, 180 ollies and half-cabs on flat, streetplants, and benchslides. Of course, Natas and Tommy G. were doing this stuff at the same time too.
There's also a driveway in Laguna Beach with a gap and tree that Gonz ollie footplants on. That's an iconic Gonz spot (although I can't remember who had some trick in a magazine there a few years back).