This is the worst game ever created. Its rules dont even work 99% of the time. Missing shots is what is supposed to add more balls, and even when you hit dead on and eliminate about 50 balls, it still often just adds more for no apparent reason. Delete this game immediately.
Girl has dream. Boy helps girl attain dream. Girl cheats on boy. Girl realizes she screwed up. Girl decides to skip dream. Girl instead makes lots of sandwiches. They live happily ever after.
My major beef with this game as with most that share a similar mechanic, is that upgrading the Coin Magnet merely increases the range, and not the speed at which the magnet attracts things. Thus, with high submarine speed, and a large magnet radius, things just trail behind until stopping or going back for them, which really detracts from the value of the upgrade. It should at least scale appropriately with your current speed. Only other thing I would suggest is a semi-random map instead of the same one over and over again, to add a bit of replayability. Fun, 4/5.
This game is fun and addicting but needs some improvements. Perhaps make it so every 5-10 red gems you get +1 attack to start with, because at high gem count it is basically pure luck at getting Attack drops or a gigantic waste of gold in order to remain competitive. More levels for skills and/or more skills (you could keep it at 3 skills able to be equipped at once, just have more options), more hero choices, and some new scenery every 10 stages or so would be nice as well.
Achievements: Complete 6 levels on 1 balloon; Complete 17 levels on both balloons. Have completed all 25 levels. Have neither achievement. 17 + 6 = 23. I literally have to have at least completed one or the other. Math is hard.
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I take it you found Norman.