Find the secret gold cog in level 2
Find the secret gold cog in level 4
Find the secret gold cog in level 17
Find the secret gold cog in level 18
Get all the gold stars in the game
Complete the game in Hardcore mode
Find the secret gold cog in level 5
Find the secret gold cog in level 8
Find the secret gold cog in level 9
Find the secret gold cog in level 10
Find the secret gold cog in level 12
Find the secret gold cog in level 13
Find the secret gold cog in level 14
Find the secret gold cog in level 16
