We didn't really have time for balancing. We wanted to have more impactful upgrades, more types of "weapons" and more types of enemies, but we started slow and rushed at the end so time did not allow for more. Having like 100 enemies is pretty much the point in these types of games, unfortunately the upgrades do not allow you to deal with them efficiently. I guess in that case it adds to the theme, but that was not the intent. Lastly, you should be able to survive, but because of lack of time and balancing we didn't set up a time goal since we didn't know what would be appropriate.