New Weapon work in progress

Hi everyone,
I'm now changing some of the previous structure of the game to bring a new weapon -- the Gun into the game, the new weapon will have some brand new upgrades coming with it (since obviously upgrades like "Longer Sword" will not work with a gun). I will also be adding some new types of enemies, like rapid firing enemy, heavy slow enemy and fast moving enemies later.
If any one has any ideas of what new upgrades you would like to see in the game please leave a comment here and I'll see if I can add it to the game.