In Pokemon Go, there are certain creatures that are more difficult to catch than others. Trainers will need items such as stronger Poke Balls and berries to catch these slippery Pokemon creatures.

These Pokemon are known to be quite difficult to collect based on their base capture rate, according to the Silph Road Reddit page.

Pokemon Creatures With Four Percent Base Capture Rate

Un-evolved Pokemon creatures are easy to catch. Capturing them becomes difficult once they evolve. Third level Pokemon such as the Blastoise, Charizard, Dragonite and Venusaur have a base capture rate of only four percent which makes them very hard to catch with low powered Poke Ball.

Trainers will need a Masterball to have a 100 percent chance of catching these tough Pokemon creatures. However, a Masterball is not easy to come by which makes the Ultraball as the next best thing.

Pokemon Creatures With Eight Percent Base Capture Rate

Pokemon creatures with an eight percent base capture rate are no less easy to catch. There is only one fully evolved Pokemon in this list: Gengar. First evolved Pokemon creatures on the list include the Arcanine, Charmeleon, Clefable, Dragonair, Gyarados, Ivysaur, Ninetails, Raichu and Wartortle.

Aside from the two Poke Balls mentioned, trainers can use Dusk Balls which increases the catch rate by four times provided that the Pokemon is caught at night or in caves. Bug and Water Pokemon creatures are three times more likely to get caught if players use a Net Ball.

Pokemon Creatures With High Flee Rate

Pokemon creatures with high flee rate can also make catching them harder. Trainers have only one chance to capture Abra, which has a 99 percent flee rate. This means that Trainers will unlikely have a second chance once they fail to capture the Abra the first time around.