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On the upper floor there's a terminal you can use to trigger explosions from the floor. Getting the boss caught in the explosions will damage it. The boss can fire diagonally up, so you have to be cautious when climbing. To make that safer, you can make it retreat to the right by charging it (walking toward) without attacking.

Before the fight starts, you can also return to the previous mine sections to defeat more enemies (they respawn over time) and gain ammo from them. Also look for hidden grenades, if you haven't collected and used them yet.

The electrical boxes will pause for  a longer time (a few seconds) and then you are safe to cross. As for the truck fight, the easiest survivable tactic is to use the cover spots provided by the large turbine enclosures.

There's a separate startup script for Linux, which invokes Wine (needs to have been installed) to run the emulator.

This game utilizes the same basic controls as Steel Ranger and is possible to play using a 1-button joystick without touching the keys - doubleclick fire to access the inventory / weapon selection. The possibility for extra buttons is a convenience - e.g. using an extra button to jump instead of the Up direction.

It is slightly over 800 screens, and should be a longer experience than Hessian, though the exact length depends on the playing style.