Thx for playing! And weird: I don't have problems jumping and shooting at the same time with a joystick. Did you play the hd or whdload version? hd version it seems? And with what kind of joystick?
Will investigate. Meanwhile: there is also keyboard support (WASD / Arrow Keys / Space)
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The problem apparently only occurs after opening the options menu. It is definitely a bug. I tested the standard HD version. After that, the game can no longer be played correctly, even with the keyboard. We look forward to taking another look at the final version of the game once all the bugs have been fixed. So, this isn't a final verdict yet—just a preview for now.