Watermelon Combination

[Core Rules] 1. **Movement and Safety Mechanism** - Tap the screen → The target fruit moves to the tapped location. - **Release your finger** → The target fruit immediately stops and enters a safe state (it cannot collide with other fruits in this state). 2. **Merge and Evolution** - **Only collide with fruits smaller than or equal to your own size while moving** → The progress bar fills. - When the progress bar is full → The grape upgrades to a larger fruit (final form: Watermelon). 3. **Failure and Result** - Colliding with a larger fruit → The current level is immediately restarted (the grapes are reset to their initial state). - At the end of each round, the current score and the highest score are displayed.