There are 6 unique levels in World of Skeletons - Hidden Stars, each offering its own spooky environment filled with hidden stars.

The objective of the game is to discover all the hidden stars scattered throughout the spooky world of skeletons across different levels.

Yes, World of Skeletons - Hidden Stars can be played on both mobile devices and PCs. For mobile, simply tap the screen to bring up a magnifying glass. For PC, use your mouse to explore and find the stars.

While there isn't an explicit tutorial, the game provides intuitive controls where tapping on mobile brings up a magnifying glass and using the mouse on PC allows exploration, making it easy for new players to get started.

If you miss some stars in one level, you can always replay the level to try and find the remaining stars. It's part of the challenge to ensure you've found all hidden stars.

While the main focus is finding hidden stars, there may be subtle challenges or secrets hidden within each level. Keep exploring to uncover any additional surprises the spooky world of skeletons has in store!

On mobile, tapping the screen brings up a magnifying glass which helps you zoom in and more easily locate the hidden stars in the detailed environments of the game.

Given the theme of skeletons, the game may not be suitable for very young children. However, it is generally designed to be engaging for a wide audience who enjoy puzzles and hidden object games.