Here is the full list of all 41 Danger Scavenger achievements.
Die by falling from the roof
Fall from the rooftop 10 times
Finish the game on Hardcore mode
Beat the game with Professor
Complete 10 skyscrapers
Destroy 100 enemies during hacking
Destroy 1337 enemies
Get total of 10.000 scrap
Finish the game
Finish broadcast skyscraper
Get 10.000 score in one run
Beat the game with HUN-73R
Heal total of 25 hp
Finish military skyscraper
Finish biotech skyscraper
Finish any skyscraper without getting hit
Get 3 daemons installed in one run
Deal 200 or more damage in one shot
Finish oriental skyscraper
Destroy 5 enemies with one explosion
Finish diesel skyscraper
Complete diesel skyscraper
Perform 100 roof kills
Collect 100 items
Get 1.000 scrap in one run
Unlock Echo - the hacker
Deal 300 damage using environment
Find a secret
Die 3 times
Unlock all weapons
Die in coop mode
Deal total of 10.000 damage
Deal 1.000 damage in one shot
Finish any skyscraper without using your weapon
Discover 20 new items
Destroy 100 enemies with melee attack
Heal 10 hp in coop mode
Beat the game with Captain J.
Beat the game with Keiko
Beat the game with Rhino
Beat the game with Echo