Get a combo of 5 or higher.
Get a combo of 10 or higher.
Get a combo of 20 or higher.
Get a score of 5000 or higher.
Get a score of 1000 or higher.
Get a score of 10000 or higher.
Unlock the second level: Dark Cave.
Unlock the fourth level: Lost Ruins.
Unlock the third level: Ancient Tunnel.
Fall a total of 1,000 meters.
Fall a total of 10,000 meters.
Kill a total of 100 enemies.
Kill a total of 10 enemies.
Kill a total of 1,000 enemies.
Unlock all upgrades.
Collect all pages from the journal of the Arctic Expidition.
Unlock all Power ups.