UNDER NIGHT IN-BIRTH II Sys:Celes stands as a 2D fighting game that expands on its predecessor with refined visuals, an evolved battle system, and post-launch character additions delivered through the season pass.
Gameplay
The core loop centers on one-on-one matches where players manage the Grind Grid system positioned at the bottom of the screen. This six-block gauge fills through offensive actions and enables access to enhanced states that boost damage output. The GRD Vorpal mode provides tactical advantages during key moments in a round.
New additions include the Creeping Edge mechanic and Celestial Vorpal state, which alter how the gauge interacts with match flow and prevent simultaneous activation by both fighters under certain conditions. An EXS button simplifies entry into stylish combos, allowing quicker access to advanced techniques without extensive prior experience. Rollback netcode supports smoother online play across ranked and casual formats.
Character rosters feature returning fighters alongside new additions, with expanded move lists and balance adjustments applied across updates. Stages receive graphical refreshes, and facial animations add expressiveness during battles.
Game Modes
Single-player options include Normal Mode, which structures ten fights around a character's narrative progression. Score Attack challenges players to maximize points across the same fight count, while Time Attack emphasizes completing the sequence as quickly as possible. Survival and high-score variants extend endurance testing, and combo trials provide dedicated practice for specific techniques.
Multiplayer centers on online PvP through rank matches and player matches, supplemented by casual options that lower barriers for quick sessions. Local shared or split-screen play supports versus matches as well.
Characters and Ongoing Support
The season pass grants immediate access to Kuon along with three additional fighters released on a schedule. Uzuki arrived in 2024, followed by another character in early 2025 and a third later that year. Each new fighter includes associated stages, and major patches accompany releases to refine systems and add features.
Support continues with further balance changes and quality-of-life improvements, maintaining an active roster that now exceeds the original lineup from prior entries in the series.
Is It Worth Playing?
This title suits players who enjoy 2D fighters with layered systems like the GRD gauge and Vorpal mechanics. The combination of story-driven single-player content, practice tools, and online competition with rollback netcode creates a complete package for both newcomers and experienced competitors.
Ongoing character releases through the season pass keep the roster fresh, and the presence of multiple modes allows varied play sessions without repetition. Those drawn to technical depth and consistent updates will find consistent value in the current state of the game.