Update #20 - Small changes

[b]Changes include:[/b] [list] [*] Talent tree is now entirely visible from the start. [*] Added critical strikes. [*] Shortened early game bullet lifetime significantly. [*] Asteroid hitboxes are fixed. [/list] Sorry about the small amount of changes. I tried cooking some ability upgrades such as a laser beam, 3 different bullet variations, and a giant circle that falls down the screen from the top but nothing really landed. So I decided to upload this small patch for now.