Let's talk specific details about full completion since there's quite a bit to unpack here. The rewards system works differently than you might expect - completing the main story arc triggers specific gear drops like the militech berserk mk.5 and gorilla arms, but reaching true 100% doesn't add anything extra to your inventory. When you're pushing through all the optional content, you'll max out your character progression naturally through xp and street cred gains, but there's no special acknowledgment waiting at the finish line.

The secret ending sequence requires very specific dialogue choices during the chippin' in questline - it's not tied to completion percentages at all. Your positioning and timing during conversations matter more than clearing every marker off the map. Something worth noting is that while grabbing every ncpd scanner hustle and cyberpsycho sighting definitely fills out your experience, the game doesn't track or reward full completion beyond the standard achievement system.

The real value comes from experiencing all the narrative threads and building your perfect loadout through natural progression, since there's no special gear or hidden cutscenes waiting as a completion bonus. Just keep that in mind while deciding how completionist you want to get with your playthrough.