For anyone attempting the harde badge. It is doable, as long you keep your head in the round. I could have completed all brilliant levels at level 24, but due to some mistakes I was level 28 because I had to attempt level 15 a couple of times.
Tips for level 15, make mostly Orc Burrows and upgrade them with 50% Balista and 50%Crit. The ballista's shot lands later when the ninja's turn invisible, still killing them.
Wave 40 is the hardest part of level 15, make sure you have 4 meteors ready with 5/5 damage upgrades and 5/5 (i think, in mana upgrades.
Final build -
Orc upgrades - all except the extra Gem.
Undead upgrades - all except Frenzy Study, Frenzy Mastery and Ice Mastery
Demon upgrades - 5/5 Basic Training, 1/5 - Scorching Treasure - 1/1 Adoration - 5/5 Meteor Study and 4/4 Meteor mastery.
For me this was a fun game! I like bullet hells and with some strategy you notice quick improvements in the game.
These are the Enemies that I've encountered so far (max score 3880).
Red - fires 1 bullet straight towards you
Pink - charges at you with a circling bullet
Gold - Shoots AoE bullets
Teal - Shoots 3 bullets straight at you
Purple - Homing bullets
One thing I did not read (prob my bad) was that blocking enemy bullets with your own, levels your own bullets power. When you increase in level you get some health back (more the higher your level is, to a maximum of 5) and your shots increase in power.
To get the 3600 score for the bagde I started not using Sprint. I found myself charging into bullets that we not shot at me directly to start with.
Good luck and have fun with this enjoyable game!
Completed the Impossible badge in 19h of gameplay (under Achievements in the game).
Some tips:
1 - When you spend stars on upgrades, that decreases your Money Multiplier.
2 - Upgrade stars gain first, then other EXP gains, also get the automaton gun upgrade fast, that will save you alot of clicks.
3 - Before you click Prestige, spend your stars first so that you keep your money multiplier.
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