This is a complete Unity game, called Shape Shift.
It is ready for release, and it’s excellent for learning purposes.
Contains Admob and Unity Ads
How to play?
On mobile : Hold and move your finger up-down on the screen to scale the player.
On desktop/web : Use ’W-S’ keys on your keyboard to scale the player.
Your goal is to make the player fit inside the obstacles.
However, if you touch any of the obstacles, then you die.
Background music by Eric Matyas: http://www.soundimage.org
Sound effects: https://www.noiseforfun.com