third level is easiest, just stand there and when the colors start to appear below u, jump, if timing correct u'll dodge. no lives lost there. the boss and level 2 should be no sweat either. first level is glitchiest and annoying
i agree that there should be a money system. for every match you win depending on your opponents rank and a certain formula of other little things (ie damage taken, etc) to end up with a certain ammount of money you get every round, and you can then spend the money in a store to buy cards
 "Music Catch"){kind=icon}
 "IndestructoTank! AE"){kind=icon}
 "Ancient Origins{flying fish}"){kind=icon}
 "Cursor Attack 3"){kind=icon}
 "- Music in Motion -"){kind=icon}
 "Mental"){kind=icon}
 "Cursor Challenge Unlimited"){kind=icon}
 "Four Second Firestorm"){kind=icon}
 "Typing Ninja Hunter"){kind=icon}
 "ELEPHANT RAVE"){kind=icon}
 "Grid16"){kind=icon}
 "Mr. Bounce"){kind=icon}
 "Kongai"){kind=icon}