for those having trouble the keys to this game are the wealth towers, (not wealth steal its not worth the money you spend to upgrade) remember to place them in strategic locations so they can kill.
SPOILER ALERT DO NOT READ IF YOU WANT TO PLAY GAME FAIRLY!:
to complete the game in one day on the upgrade menu keep pressing tab until you get to the repair ship button. the press enter until it repairs completely you will go into minus money
if you ever make a sequel a good idea would be detachable joints during gameplay so you could detach pieces you didn't need. for instance the monkey bars level
word of advice for apocalypse mode, sometimes its better to buy turrets rather than upgrade existing ones.more firepower=more ships targeted and destroyed.
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