- Open index.html
- Use arrow keys to move the player up, left, right, and down
- Collect hearts to add more player lives
- Collect all the shells to win the game
- When the player has zero lives, the game will end and reset
- When the player collects all shells, the winner screen will display
- Difficulty
- Hard: All rows except one have Sharks swimming
- Easy: Two rows have no Sharks and the lowest row with a Shark moves at slow speed
- Debug Mode
- On: Displays colored rectangle overlays of all the game entities and canvas info
- Off: Normal display