>>58379960Consider playing HGSS, you'll very quickly see what I mean. A ton of Pokemon are off the beaten path, encouraging the player to explore in order to find new Pokemon in order to build a team (or in order to catch 'em all, in the case of Unown, because let's be honest, you're not using Unown)
Scyther, Pinsir, Heracross, Lapras, Natu, Aipom, the entirety of route 47/48/safari zone, Pineco, Dunsparce, Tyrogue, Remoraid, arguably Yanma, the list goes on and on, a large portion of the Pokemon are in optional areas, or are very rare, or both.