v1.2.1

• Modify background
• Fix path generator error

v1.2.0

• Add ship
• Add music
• Fix typos

v1.1.3

Modify:

• Fix typo in title

v1.1.2

Modify:

• Fix speed update bug

v1.1.1

Modify:

• Fix bug in paths

v1.1.0

Add:

• Difficulty levels

v1.0.0

Initial release