This game is pretty impressive for being a flash game. Highly enjoyable gameplay and a surprising amount of depth in the upgrading system once you get passed the confusing beginning.
It deserves a high rating but I can't give it more than 3 stars because it erased my progress two times now. As far as I can tell from the comments this is a recurring problem. If you fix this problem i'm sure you'd see that back in the score of the game. Good luck on your future projects.
I honestly can't understand how this game could get rated so highly.
Even though I have to give nerdook credit for the original idea for this game (especially compared to the rest of what he produced so far), the gameplay needs a lot more fleshing out to do before it comes even close of its current rating so far.
I'd advise nerdook to spend more time on fleshing future games out before spewing it out for the world to play. A monthly deadline for a new game is meaningless if the quality of the games are on a steady decline.
To get the single super bomb you just have to destroy all the castles with any medal.
To get the triple super bomb you'll have to get a Gold medal on EVERY castle.