See the red sky for the first time.
Kill your first necromancer.
Kill your first bishop.
Kill your first angel.
Reach the 7th wave.
Use any orb for the first time.
Use the red orb 50 times
Use the green orb 50 times
Use the blue orb 50 times
Kill 15 enemies with a single bomb
Reach a level 6 combo
Reach a level 7 combo
Reach a level 8 combo
Reach a level 9 combo
Reach a level 10 combo
Score exactly 6,666 points.
Score at least 50,000 points without ever using orbs.
Score at least 50,000 points without getting hit more than once.
Score at least 50,000 points without ever healing.
Score at least 100,000 points.
Kill 1,000 warriors.
Kill 1,000 archers.
Kill 1,000 wizards.
Kill 500 necromancers.
Kill 1,000 zombies.
Kill 200 bishops.
Kill 100 angels.
Kill 10,000 human enemies.
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