List of changes:

1) Added a new game object: a barrel

2) Added blood when taking damage

3) Added a restart button

4) Added music settings

5) Added sound settings

6) The Interface scales to fit the screen

7) Changed the object spawn generator

8) Fixed a bug with infinite spawn of portals

9) Changed the tile set

10) Fixed a tile rendering error

11) Reduced monster stamina

12) The Monster can't see through the walls

13) Changed the time of teleportation of the monster