Male Frillish will be available to all trainers in Pokemon Go for a limited time. This sex of Frillish is usually uncommon to be found out in the wild but as of April 1 players will be able to claim their opportunity to capture this rare Pokemon.
Frillish Pokémon GO: Male Frillish Now Available for April Event
Male Frillish will now be available to all players through the Research Breakthrough encounters. For each Research Breakthrough claimed players will be rewarded with an encounter. The female version of this Pokémon, denoted by its pink skin, can be found easily on the map. However, the male version is normally only available to trainers after winning in the Go-Battle League. However, there is a segment of players who don't enjoy PvP so this is their time to capitalize on a special opportunity.
The Research Breakthrough encounters will be available through the entire month of April, so it's highly encouraged that players go out and grab Male Frillish before it's gone.