Version 0.4.3 Update

Quite a few major and minor changes have been made with this update. Among them:

• Tweaked the combo/scoring system
• Added an end-of-game results screen
• Altered some enemies' patterns
• Added a particle effect for enemies' shots
• Reworked the continue menu to add a timer and show the number of continues remaining
• Updated the sprite for the Stage 4 boss