Armed To The Teeth - 30g " Fully Upgrade All Weapons"
Someway through Chapter 1, you will be told about upgrading weapns
>Press the Start Button, At the top should be Weapons<
There is 3 upgrades for each of the 4 weapons
> Acquired During Chapter 1 <
Vorpal Blade - 175 > 675 > 800
Total = 1650
> Acquired During Chapter 1 <
Pepper Grinder - 475 > 575 > 800
Total = 1850
> Acquired During Chapter 2 <
Hobby Horse - 500 > 625 > 775
Total = 1900
> Acquired During Chapter 3 <
Teapot Cannon - 525 > 600 > 725
Total= 1850
For a total of 6750
If you're breaking everything in sight you should have this by the end of the game, if not re-play some chapters after completing the story
Happy Hunting :)