For those trying to get the hard badge: You get a very powerful potion to throw once you beat all the levels WITHOUT GOLD. THen you can beat the others with gold. Hope this helped. :)
2 things (sorry for posting too many comments. :P):
1. What is the use of making enemies if there is nowhere to try them?
2. Can you add multiplayer mode in this game? It would be cool if there was.
There are a few tips if you want to create a slayer ship. 1. Always use passives. All of them are very useful. 2. Add as many weapons as possible, especially the high damage weapons. 3. Use ally swarms. They can deal even more damage! + this so everyone can see these.
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Press down and sneak past the guard. Not necessarily to jump over. =)