1 Added a "Hard" difficulty option. Enemies react faster, and are able to endure more damage in hard mode.
2 Added Free Aiming Mode. You can use your mouse to aim now.
3 The character can shoot while climbing walls now.
4 Added a hidden item.
5 Added a purchasable item.
6 Improved controls related to wall climbing. Now pressing down will make the character slide downward faster. Down+Jump detaches the character from the wall.
7 Embedded Cheating functionalities. But the achivements won't be unlocked if cheat mode is on.
8 Fixed the issue that sometimes the remaining amount of the tactical item being wrong on the HUD.
9 Fixed the Shop interface display errors in some occasions.
10 Fixed the issue that underwater sound effects keeps on after reloading a level.
11 More optimizations on the issue where sandworms causing fps drop.
12 Some of the keyboard and mouse input indicators are now displayed as icons.