Here is the full list of all 28 Sky Rogue achievements.
Complete a co-op mission without either player taking damage
Unlock all technologies
Unlock all Interceptors
Unlock all Fighters
Complete a mission in co-op mode
Unlock all Bombers
Complete a mission without taking damage
Reach the final island
Reach the snowy islands
Score a critical hit
Reach the arid islands
Kill an enemy aero at range 50 or less
Earn 5 air kills in one mission
Complete mission 0
Find the debug menu
Earn an air kill while stalling
Complete a custom mission
Complete the game
Complete the game in co-op mode
Complete the game without upgrades
Complete the game using only the Rogue with its default loadout and no upgrades
Die 100 times
Complete the game in under 40 minutes