Here is the full list of all 37 Xenoform achievements.
Score 3 missile kills
Score 10 missile kills
Score 50 missile kills
Kill 3 bombers
Kill 10 bombers
Kill 50 bombers
Kill 3 fighters
Kill 10 fighters
Kill 50 fighters
Kill 1 enemy while above engine ceiling
Kill 3 enemies while above engine ceiling
Kill 10 enemies while above engine ceiling
Kill an enemy while parked on carrier deck
Kill 3 enemies from carrier deck in a single level
Kill 5 enemies from carrier deck in a single level
Kill an enemy by colliding with it
Kill 3 enemies by colliding with them
Kill 10 enemies by colliding with them
Fly above 1400 M
Fly above 1600 M
Fly above 1800 M
Spend more than 60 seconds above engine ceiling
Spend more than 180 seconds above engine ceiling
Spend more than 600 seconds above engine ceiling
Kill an enemy from >1600 m with your guns
Kill an enemy with a missile after you die
Finish a level with less than 5% of terrain infected
Land on refueling pad with less than 1% fuel remaining
Land on refueling pad with less than 1% health remaining
Completely submerge your aircraft underwater and survive
Buy every upgrade for your aircraft.
Fly 30 km.
Fly 150 km.
Fly 300 km.
Cruise 3 km on the deck of your carrier.
Cruise 10 km on the deck of your carrier.
Cruise 30 km on the deck of your carrier.