Version 1.2.1 introduces a new Neon Slime Arena app icon for clearer recognition on the App Store and Home Screen. Gameplay, progression, purchases, and the content of version 1.2 remain unchanged.

Version 1.2 adds Hexa Barrage, a rapid-fire weapon unlockable with 150,000 earnable Neon Chips, plus four exclusive signature cards: Rotor Index, Thermal Bypass, Swarm Vent, and Fifth Harmonic. The campaign now contains 100 handcrafted stages. Ultimate abilities and Celestial Sovereign receive upgraded premium visuals, and Spanish, Simplified Chinese, and Hindi join revised English and Vietnamese localization. This update also improves accessibility, progression clarity, combat effects, purchase safeguards, and reliability. Local/offline play and the full free progression path remain available; purchases are optional.

Version 1.1 brings edge-to-edge arenas, a cleaner combat HUD, 50 authored stages, six weapons with tailored signature upgrades, and three Ultimate abilities. It also adds optional iCloud progress protection, optional Game Center connection, and three optional consumable Neon Chip packs. Local and offline play remain available, Neon Chips remain earnable through gameplay, and this version has no ads or paid random rewards.