Zero-Merge

Zero-Merge is a physics-based math puzzle game inspired by classic dropping games and retro arcade aesthetics. Drop balls containing values and operators, perform mental arithmetic calculations on contact, and clear the board by creating "0" to prevent overflowing!

🎮 GAMEPLAY & CONTROLS:
- Swipe or tap to aim, release to drop.
- Red balls represent positive numbers (+), and Blue balls represent negative numbers (-).
- When two balls with the same operator (＋, －, ×, ÷, ^) touch, they merge into one!
- The older ball on the board becomes the left operand, and the newer ball dropped becomes the right operand. The math formula is calculated and displayed in real-time.
- The operator cycles after each merge: + → - → × → ÷ → ^ → +
- HOLD: Swap the current ball with the held ball to plan your strategy!

✨ KEY FEATURES:
- The Annihilation Rule: If the calculated result is exactly 0, the merged ball vanishes immediately! Use this to clear space and build huge combos.
- Retro Arcade Style: Enjoy nostalgic pixel art fonts, CRT screen shader effects, and synthesizer-style 8-bit sound effects.
- Combo System: Chain multiple merges in a single drop to multiply your score!
- Multi-language support: Seamlessly toggle between English and Japanese in-game.
- Offline Play: No internet connection required. Play anytime, anywhere.
Challenge your mathematical intuition and spatial reasoning. Can you reach the ultimate high score before the container overflows?