Kanto Route 12/Difference among generations/Generations II and IV

Some changes were made to this route in Generation II, most of which were carried through to Generation IV. In particular, the route was shortened considerably and the grassy areas along the route were removed. The gate between Silence Bridge and Lavender Town was also removed and the number of Trainers on the route was reduced to three (although this remains eight in ).

In Generation II, the signpost at the north end of Route 12 now reads "Fishing spot". To compensate, the Route 12 notice present on this sign before was moved to the former "Sport fishing area" sign at Route 11. The signpost on Route 13 just southwest of Route 12's end, however, still reads "Route 13: North to Silence Bridge".

In, if the Snorlax from Route 11 is knocked out by the player, it will reappear outside of the Route 12 gate after the player defeats the.