Demo_v4

Howdy I did some changes that are listed below, slowly the game is shaping up to be a playable thing that even may be enjoyable! 

Hope You all have a wonderful day! ^.^

Changes:

- added main menu music

- added keys pickup sound

- changed doors opening sound

- altered "The Man" behaviour

- added some enviroment noise

- added pause menu during game allowing for other game exit than alt + f4, and completing it

- minor 1st level changes

- revamped half of 2nd level

Goals:

- started working on new level related to physics puzzle