[Hint System] Add a hint system:
According to the feedback of some players, there is no clue at some levels.
The hint system will be turned on 20-30 seconds after the stage begins. Click the light bulb on the pause panel to obtain a hint. (Approximate outline of the fences, for reference only)
( There is no hint for hidden stages! )
( Restarting a game will reset the timer! )
The hint system provides an "easy" mode to clear the stages. However, to unlock achievements or get the golden stars, you need to come up with other solutions.
[Retry Button] Change the function of retry button to "undo the last operation".
If you want to explore a simpler solution after passing a level, you can click it.
