And so it repeats once again (secret)
Finished all of the main story missions.
Gold
Flex Those Muscles! (secret)
Learned the character's maximum skills.
Silver
Now, What Have We Here? (secret)
Finished all of the side quests / free missions.
Silver
Once Upon a Time (secret)
Finished the mission, "Beginning of the Beginning".
Silver
Shaping Up Nicely Old Fart! (secret)
Enhanced the same weapon over 30 times.
Gold
Thanks... Roboton (secret)
Reached Level 25.
Silver
That's Bananas! (secret)
Fell on a banana.
Bronze