Version 1.1.1

Bug fixes:

- adjusted player physics

- altered physics of floating crates, especially in first and fourth levels

- ensured that green gas makes sound on contacting player

- changed layout of some levels and objects to reduce player blocking

New features:

- oxygen bar now blinks when oxygen is low and during retaking

- added oxygen alarm sound when oxygen is low

- added frozen walls to level 3

- one activator can now connect to multiple objects, so some puzzles were changed a bit

- added arrow which points to objects that player can activate

Other changes:

- updated code with things I learned during past year

- made interface bigger and more contrasting against background

- changed tileset textures a bit