It's been a few years, and I've been too caught up with life, that I've missed many many gameplay videos of people playing the game. 

This one, I'd like to mention. It's a great video, and I understand the frustration.

The game has many bugs, and certain hidden 'features', that can cause a lot of confusion. So here's some tips;

- Since the video, there may have been some changes.

- The save & load feature only works with items. Players can play the tutorial level by hitting the 'Help' button, and then collect all of the items there, and then save items. From there, at the start of every level, the items can be loaded.  

- The item menu is buggy. Leave at least 1 slot empty at all times, so that items can stack properly. Some items, are the same but have separate stacks. I'm unsure why. 

- Picking up weapons automatically assigns a gun to a number, but this may not work properly. This may, or may not change the number of the melee (fists) which should always be 1 but pressing a weapon button again, may go back to fists as well. 

- Most thin wooden walls do not protect you from bullets, and the Ai knows this. 

- There are 2 dirt walls in the mine level, which can be shot at to be destroyed, or shoot the barrels. 

- Explosive barrels are tinted green.