Complete the indicated task to unlock the achievement.

Achievement	How to unlock
50% Difficulty 1	Play 500 stages start to finish at 50% difficulty or higher without changing the difficulty.
50% Difficulty 2	Play 2,500 stages start to finish at 50% difficulty or higher without changing the difficulty.
50% Difficulty 3	Play 10,000 stages start to finish at 50% difficulty or higher without changing the difficulty.
50% Difficulty 4	Play 25,000 stages start to finish at 50% difficulty or higher without changing the difficulty.
70% Difficulty 1	Play 250 stages start to finish at 70% difficulty or higher without changing the difficulty.
70% Difficulty 2	Play 1,500 stages start to finish at 70% difficulty or higher without changing the difficulty.
70% Difficulty 3	Play 5,000 stages start to finish at 70% difficulty or higher without changing the difficulty.
70% Difficulty 4	Play 17,500 stages start to finish at 70% difficulty or higher without changing the difficulty.
90% Difficulty 1	Play 100 stages start to finish at 90% difficulty or higher without changing the difficulty.
90% Difficulty 2	Play 500 stages start to finish at 90% difficulty or higher without changing the difficulty.
90% Difficulty 3	Play 2,500 stages start to finish at 90% difficulty or higher without changing the difficulty.
90% Difficulty 4	Play 10,000 stages start to finish at 90% difficulty or higher without changing the difficulty.
Artifacts 1	Collect 1,000 Artifacts.
Artifacts 2	Collect 10,000 Artifacts.
Artifacts 3	Collect 50,000 Artifacts.
Artifacts 4	Collect 250,000 Artifacts.
Artifacts 5	Collect 1,000,000 Artifacts.
Base Success 1	Successfully defend your base 10 times.
Base Success 2	Successfully defend your base 50 times.
Base Success 3	Successfully defend your base 500 times.
Base Success 4	Successfully defend your base 5,000 times.
Bosses 1	Defeat 100 Bosses.
Bosses 2	Defeat 1,000 Bosses.
Bosses 3	Defeat 5,000 Bosses.
Bosses 4	Defeat 15,000 Bosses.
Bosses 5	Defeat 50,000 Bosses.
Clicks 1	Click in game 1,000 Times.
Clicks 2	Click in game 10,000 Times.
Clicks 3	Click in game 25,000 Times.
Clicks 4	Click in game 75,000 Times.
Clicks 5	Click in game 150,000 Times.
Dark Artifacts 1	Collect 1 Dark Artifact.
Dark Artifacts 2	Collect 1,000 Dark Artifacts.
Dark Artifacts 3	Collect 10,000 Dark Artifacts.
Dark Artifacts 4	Collect 100,000 Dark Artifacts.
Deaths 1	Die 100 times.
Deaths 2	Die 1,000 times.
Deaths 3	Die 5,000 times.
Deaths 4	Die 15,000 times.
Deaths 5	Die 50,000 times.
Fragment Upgrades 1	Buy 100 Fragment Upgrades.
Fragment Upgrades 2	Buy 250 Fragment Upgrades.
Fragment Upgrades 3	Buy 1,000 Fragment Upgrades.
Fragment Upgrades 4	Buy 2,500 Fragment Upgrades.
Helpers 1	Summon 100 Helpers.
Helpers 2	Summon 1,000 Helpers.
Helpers 3	Summon 10,000 Helpers.
Helpers 4	Summon 25,000 Helpers.
Helpers 5	Summon 50,000 Helpers.
HighestLvl 1	Reach stage 1,000.
HighestLvl 10	Reach stage 1,000,000.
HighestLvl 2	Reach stage 10,000.
HighestLvl 3	Reach stage 25,000.
HighestLvl 4	Reach stage 50,000.
HighestLvl 5	Reach stage 75,000.
HighestLvl 6	Reach stage 100,000.
HighestLvl 7	Reach stage 250,000.
HighestLvl 8	Reach stage 500,000.
HighestLvl 9	Reach stage 750,000.
Hours 1	Play for 1 Hour.
Hours 2	Play for 5 Hours on one save.
Hours 3	Play for 20 Hours on one save.
Hours 4	Play for 50 Hours on one save.
Hours 5	Play for 200 Hours on one save.
Kills 1	Kill 1,000 Enemies.
Kills 2	Kill 10,000 Enemies.
Kills 3	Kill 50,000 Enemies.
Kills 4	Kill 250,000 Enemies.
Kills 5	Kill 1,500,000 Enemies.
Perfect Clears 1	Clear 25 stages without getting hit by any enemies or enemy projectiles.
Perfect Clears 2	Clear 250 stages without getting hit by any enemies or enemy projectiles.
Perfect Clears 3	Clear 1,000 stages without getting hit by any enemies or enemy projectiles.
Perfect Clears 4	Clear 5,000 stages without getting hit by any enemies or enemy projectiles.
Portals 1	Enter a portal.
Portals 2	Enter 10 portals.
Portals 3	Enter 50 portals.
Portals 4	Enter 100 portals
Portals 5	Enter 500 portals
Powerups 1	Collect 100 Power-ups/Coins.
Powerups 2	Collect 1,000 Power-ups/Coins.
Powerups 3	Collect 5,000 Power-ups/Coins.
Powerups 4	Collect 25,000 Power-ups/Coins.
Powerups 5	Collect 100,000 Power-ups/Coins.
Random Ship Clears 1	Clear 100 stages start to finish with random ship selected without changing ships.
Random Ship Clears 2	Clear 500 stages start to finish with random ship selected without changing ships.
Random Ship Clears 3	Clear 2,500 stages start to finish with random ship selected without changing ships.
Random Ship Clears 4	Clear 15,000 stages start to finish with random ship selected without changing ships.
ShipLvls 2	Gain over 10,000 levels across all ships.
ShipLvls 3	Gain over 100,000 levels across all ships.
ShipLvls 4	Gain over 1,000,000 levels across all ships.
ShipLvls 5	Gain over 10,000,000 levels across all ships.
ShipLvls1	Gain over 1,000 levels across all ships.
Upgrades 1	Bought 10,000 Upgrades
Upgrades 2	Bought 100,000 Upgrades
Upgrades 3	Bought 1,000,000 Upgrades
Upgrades 4	Bought 5,000,000 Upgrades
Upgrades 5	Bought 50,000,000 Upgrades