Thanks for the kind words! Thats super nice to know that you love my little game.
I am currently working on the version 2, which will feature more playable characters. Only one more at first, with plans to add new ones from time to time. Hoping it fills your wish to have more weapons.
Playing on a SNES is pretty awesome o_O I didn't even know it was possible. What do you use? Some NES emulator on a linker?
Note: I cannot promise that the v2 will work on your SNES. It is based on bigger NES cartridges that are often not supported by emulators :s