Hey I figure for the sake of progression, you could do something that basically auto-backtracks one level if you can't kill the sector boss. That way if you can't kill the boss you aren't just stuck there not getting any money for hours if you idle. Another solution could be a "use upgrade on boss" button, but that's not necessary. Good game tho.
@dracus if you don't like grinding 5 hours+ for something you want, then this game isn't for you, all the people here (well almost all) has no problem with the character prices, many of us enjoy getting pyro or vh (480k+150k) because it feels like a accomplishment, many of us simply got used to the process, same thing with chests. Although we would like to have a better drop rate on good weapons...
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