The Halloween season is a treat for both players and developer Niantic as 'Pokémon GO' climbs back up to being number one, all thanks to its Halloween update.

As per GameSpot, 'Pokémon GO' is now in the top spot for iTunes top-grossing chart while currently at number two in Google Play's ranking. This has been a much-needed boost after falling the charts for both platforms.

This update marks the first ever in-game event for 'Pokémon GO,' and it has been a breath of air. From Oct. 26 to Nov. 1, players will get to see an increased spawn rate for some of the "spookiest" pokémon in the game, which includes Zubat, Golbat, Drowzee, Hypno, Gastly, Haunter and Gengar. And if that's not enough to get players hooked back to the mobile app, candies needed to power up and evolve pokémon have been doubled.

Although the update truly revived dying interest in the game,  'Pokémon GO' needs to do something to keep players motivated and invested, as per iTech Post. Now that gamers are coming back, the augmented reality game must make sure engagement isn't lost even after the Halloween event ends.

One thing they should create are daily, weekly or even monthly quests. This gives players a particular goal to accomplish within a set amount of time. It can range from walking a minimum distance to catching a number of pokémon in a day to keep players active and driven.

Another issue that needs to be addressed, iTech Post adds, is the number of team members in 'Pokémon GO,' which leads to problems resulting to gym stagnation. The status quo may be advantageous for players who go on groups but may alienate those who wish to play individually. Moreover, the rewards system in the gyms is very measly compared to the amount of effort to overtake the territory.

'Pokémon GO' has a lot of potential along with its huge fan base and history, however, some issues would need to be addressed for this top Halloween game. It would be a pain to see the game as an overnight success that would die out in the long haul.