Zenless Zone Zero is another gacha game with weekly boss encounters, but its system can initially be confusing. Luckily, every other leveling system in Zenless is straightforward and relatively quick. The new gacha game even improves its systems by allowing players to choose how tough the fight is and receive more or less of the material. Also, after reaching Inter-knot level 30, a Custom Plan feature opens that allows enemy mixing for multiple material rewards.