2D Shooter

Modifications & Credits:

1. Added Levels 2 & 3, and altered the backgrounds with existing UMich art assets.
2. Added more enemies and changed the speed, colour and health of select enemies at level 3.
3. Added Instructions to Instructions Page, accessible from the main menu.
4. Added a final "Game Complete" Popup to prevent endless mode.
5. Added a Lives Counter to all levels. Lives are set to 2 at the start of each level so it isn't too unforgiving. (Had coding assistance (2 Lines) from ChatGPT)
6. The Game is short so I reduced the base number of lives from 3 to 2.