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