i'd played and beaten this game before on a different site, so now i beat it again on kongregate and got all the badges. good game, 4/5
challenges 4 and 5 are super hard - on 4 you have to keep the shield far enough that it's out of dragon's minimum range, but closer than your sword.
for 5 you just have to run circles around the arena
 "Aether"){kind=icon}
 "Sunday Jumper 2"){kind=icon}
 "Bot Arena 3"){kind=icon}
 "Onslaught2"){kind=icon}