In Singapore, Rattatas and Raticates are going to be shops' nightmares.
Also, Furfrou would be very popular Poke-pets locally.
We would have a lot of tropical wildlife, probably Tropius, and all the region birds. Oddish and their evolution line, Bulbasaur and their evolution line, worms (Wurmple, Caterpie, Weedle etc) and their evolution lines. I won't be surprised to see Beedrills attacking on people. Sunkern would be happy in our sunny shore, Treeckos would be the house geckos that everyone hates.
Trubbish line, Grimer line and Koffing line would be a common sight.
Tepig and Spoink would be hiding in the forests.
Spearows would be attacking on Poke-pet birds like Pidgeys.
Fearow and Braviary will be seen flying around as well; With their young Rufflets.