Here is the full list of all 40 The Adventures of Elena Temple achievements.
Start a dungeon other than the Orb of Life with 'Limited Lives' and 'Campfires' active.
[The Orb of Life] Open all the gates in the dungeon.
[The Orb of Life] Finish the dungeon without ever reviving at a campfire.
[The Orb of Life] Get medals for all your best scores in the Stats screen.
Earn all 19 medals in the game.
[The Orb of Life] Finish the Orb of Life dungeon.
Finish all 3 dungeons in the game.
[The Orb of Life] Get 100% completion checkmarks on all the dungeon rooms.
[The Orb of Life] Collect all 115 coins.
[The Orb of Life] Disturb some innocent ghosts 50 times during a playthrough.
[The Orb of Life] Teleport 50 times during a playthrough.
[The Golden Spider] Get medals for all your best scores in the Stats screen.
Pick up some bullets with the 'Infinite Ammo' game modifier active.
Start playing with the 'Double jump' and 'Infinite Ammo' game modifiers active.
[The Golden Spider] Finish the Golden Spider dungeon.
[The Golden Spider] Get 100% completion checkmarks on all the dungeon rooms.
[The Golden Spider] Place magical orbs in every pedestal.
[The Golden Spider] Collect all 105 coins.
Shoot a total of 50 bats, snakes and scorpions.
Survive for 20 seconds in a certain room with two bats without shooting any of them.
Shoot less than 100 bullets during a playthrough.
Dispose of 20 enemies maximum during a playthrough.
Die 20 times maximum during a playthrough.
Finish the game in less than 40 minutes.
Get medals for all your best scores in the Stats screen.
Perform your first double jump.
Get 100% completion checkmarks on all the dungeon rooms.
Start playing with any game modifier active.
Finish The Adventures of Elena Temple.
Reach the ending area past the gems guardian.
Collect the Scroll of Completion.
Collect the Scroll of Secrets.
Collect all 120 gold coins.
Open all the chests in the dungeon.
Reach the area past the coins guardian.
Collect 99 gold coins.
Collect the Scroll of Treasures.
Collect your first gem.
Shoot a certain button while in the air to avoid falling to your death.
Collect your first 5 gold coins.