Like a genius, I left in a game-breaking bug right at the start of the game. Remember guys, never change anything, no matter how small, without testing.

Complete changelog:

Bug Fixes:
-Fixed game-breaking bug from 0.5.0
-Fixed weapon switching with gamepads
-Fixed bug where you could re-purchase a weapon you already bought

Changes:
-Boss now has even more health
-Money per boss hit reduced to $15 from $25
-Enemies spawn faster and in greater numbers
-Enemy amount curve tweaked
-Made “Entering New Sector” popup shorter
-Made enemy destruction popups shorter
-Made money popups shorter
-Changed the formula for how many enemies per level is calculated
-Enemy lasers are now drawn on top of everything else
-Adding more players slightly increases the difficulty