Major updates made

Recently decided to make some major updates to the game.

--Changes--

A tutorial I'm happier with - I didn't like the previous tutorial I made, so I made a new one. Hopefully it is a lot clearer what things do now.

Upgrades - There are now different cards you can buy at the start of a game for 'tokens' you can earn while playing. There are currently 6 new cards added.

Level select - There is currently only one level, but I might add more later.

More sound effects - To try and make it a bit clearer what is happening.

And a bunch of tiny fixes such as hitbox changes and code that I didn't even know was broken but it was. And fixing bugs toke up about half of my time.

This might not seem like much, but the game plays a lot different after these changes however the base game is still the same.