Play 1 game.
Complete 10 objectives.
Save a friend.
Visit Buddy Time.
Survive your first lava floor.
Purchase an upgrade.
Get a new skin.
Upgrade everything to the maximum.
Run a marathon's distance.
Check stats 128 times.
Meet Night Driver 90 times.
Run 1 mile in one run.
Kill 1,000 enemies.
Destroy a Prism.
Play 100 games.