Yeah, there isn't any persistent progression. Maybe I'll do something like that if I ever make a sequel.
To be clear though, you know you can open the shop again at any time to spend your money, right?
--
[Edit] Well either way. I updated it to show a reminder message to open the shop when you get a certain amount of money for the first time.
it is really hard to tell the difference between triple and double attack, can you make it easier to tell, maybe cause i'm color blind, but a #2 and a #3 would be better
i'm fighting enemies all the way at the bottom of the screen and i really have to move the mouse all the way to the top to cure? can't you make right click = cure?
 "Economical")
 "The Love Letter"){kind=icon}
 "Legal Tyrant Idle"){kind=icon}
 "ZS Dead Detective - Pumpkin Dead")
 "Your Chronicle")
 "GOSPACE")
 "Puzlogic Plus"){kind=icon}
 "Thief Adventures")
 "Poker Quest RPG")
 "Unnamed Chick Game")
 "Unfold 2")
 "Rabid Robots")
 "Listworlds")
 "Super Ordinary Joe")
 "Unfold")
 "Warrior's Journey")
I've included a button to switch ON/OFF autofire in Build screen.