Version 0.6.3 is out!

Some minor changes, some pretty big ones! 

The minor changes: 

- pebbles no longer go through fences 

- things no longer spawn after game over 

The big ones: 

- there's a pause menu 

- there are health bars, also meaning Evil Bobs don't die in one hit anymore 

- there's a main menu 

- there is saved data, and you accumulate coins over time by playing. later on there will be upgrades to use these coins on.