- Fixed minor bug causing music to be restarted if the game was minimised while paused.
- Fixed bug causing the Lightning balloon not to correctly remain unlocked if an Act was completed in exactly one minute.
- Fixed bug potentially causing unlock message not to display correctly on completing the game.
- (Finally) fixed long-term collision detection issue causing the DHU to sometimes pass through enemies with no effect.
- Improved responsiveness of navigation controls in the Act selection menu.
- Improved forgiveness of collision detection between hellion and Rickard's hand-bombs.
- Reduced rate of fire of cluster rockets.
- All cyclops now count toward the total hellion remaining (and so must now be destroyed in order to complete an Act).
- Switched the conditions required to unlock certain balloons.
- Minor and miscellaneous code tidying.

Ryan