OK, what's the pattern for the boss? Maybe it's my own fault for being not-as-dextrous as I once was, but I can only get through a gap in the first rapid-fire volley about half the time, and the other one always seems to last just long enough to pin me against the edge of the room where I can't go over around or through without getting hit. To see whatsisface saying it's sooo easy to beat makes me think there's some non-obvious trick to hiding from that seemingly undodgeable second volley. Either that or it's one of those "have better reflexes" walkthroughs.
Consider giving the player a decent reward for regular fights. If one doesn't get lucky fighting a level 2, they'll basically have to fight level 1s overandoverandover in the pursuit of enough money to improve their cards. It's really a pain in the ass when I lose, lose my only 5 gold, then have to do another fight just to be able to re-try the fight i lost. It really makes for a not-fun game.
 "Johnny Upgrade"){kind=icon}
 "Super Duck Punch!"){kind=icon}
 "Arkandian Explorer"){kind=icon}
 "WereBox 2"){kind=icon}
 "Elements"){kind=icon}