Win or lose is the same outcome against omega. Other bosses have an bad end attached to them.
Which right area are you referring to?
In the new demo there is a tutorial for the repair section, where you get the required materials.
Tutorial with the repair section? I might've missed something as I dunno what that refers to(the boxes on the walls?) but you CAN get soft locked if you decide to use the repair kit after a battle.
So should I just not waste items against the robot boss then...? It's a really difficult boss, seems like you're intended to lose?
On which version are you playing, because there is no battle before or near that tutorial.
Can you upload a screenshot of where you found the soft lock?
Boss is challenging but not intended to lose, but again depends on which version 0.6 had a lot of changes and if you are on a previous version then the difficulty is a lot different.