Here is the full list of all 50 Loop-Loop DX achievements.
See the good ending.
Achieve every achievable achievement there is to achieve!
Defeat 'The Warden' without taking damage.
Buy everything from the 'Ship Shop'.
Rescue Vektor.
Beat zone 5 without taking damage.
Beat zone 3 without taking damage.
Beat any zone while have the two-shot split. (Excluding zone 1!)
Survive in 'Bullet Hell Mode' for 3 minutes.
Survive in 'Bullet Hell Mode' for 3 minutes and 30 seconds.
You discovered what was beyond Layer 0 in 'Legacy Mode'!
Reach layer -1 with all 5 hearts in 'Legacy Mode'.
Make it down to layer 10 in 'Legacy Mode'.
Make it down to layer 25 in 'Legacy Mode'.
Defeat 'The Warden'.
Collect 8 money bags within one round of 'Bullet Hell Mode'.
Beat zone 6 in 'Adventure Mode'.
Get the money bag(s) in zone 6.
Pee continuously for 30 seconds.
Beat zone 5 in 'Adventure Mode'.
Beat zone 5 with minimum stats.
Get the money bag in zone 5.
Beat zone 4 in 'Adventure Mode'.
Beat zone 4 without taking damage.
Beat zone 4 with minimum stats.
Get the money bag in zone 4.
Survive for 60 seconds in 'Legacy Bullet Hell Mode'.
Turn on the "Speech Sounds" in the pause menu.
Hack into Granny Edna's award-winning Pecan Sandy recipe!
Survive for 15 seconds in 'Legacy Bullet Hell Mode'.
Survive for 30 seconds in 'Legacy Bullet Hell Mode'.
Beat zone 3 in 'Adventure Mode'.
Beat zone 3 with minimum stats.
Get the money bag in zone 3.
Obtain the laser weapon!
Beat zone 2 with minimum stats.
Own the Floppy Disk without being in debt.
Survive in 'Bullet Hell Mode' for 30 seconds.
Survive in 'Bullet Hell Mode' for 1 minute.
Survive in 'Bullet Hell Mode' for 2 minutes.
Collect 4 money bags within one round of 'Bullet Hell Mode'.
Go into debt.
Beat zone 2 in 'Adventure Mode'.
Beat zone 2 without taking damage.
Get the money bag in zone 2.
Make your first purchase at the 'Ship Shop'.
Acquire your first refund at the 'Ship Shop'.
Beat zone 1 in 'Adventure Mode'.
Beat zone 1 without taking damage.
Get the money bag in zone 1.