Complete the introduction training level.
You will get this after playing the very first level, which merely consists of putting on your spacesuit, grabbing your gun and grabbing a battery to power up your ship.
Unlock the UFO upgrade.
Pretty easy. Level 13 is the first level to feature UFOs. They will fly down the left or right side of the screen. They always appear on the side opposite where you are, so you'll have to run over to the other side of the map in order to destroy them. Keep an eye on the enemy indicators on the side of the screen so you can see when they appear.
To unlock the UFO upgrade, destroy 12 UFOs in Level 13. This will give you a medal that unlocks UFOs in all other levels, as well as the UFO spacesuit.
My First Spacesuit
Unlock one of the extra Spacesuits.
See Wardrobe Complete
for more info.
Unlock all of the extra Spacesuits.
There are 9 spacesuits that you can unlock. You unlock them by acquiring certain medals in specific levels. Below is a list of all the unlockable spacesuits in the game, what level they are unlocked on and what you have to do to unlock them.
- Green Camouflage: Level 5 – Fire Fight; Complete the Level
- Fiend: Level 9-alpha – Survival; Kill 250 Fiends
- Red: Level 9-alpha – Survival; Kill 15 Buffaloes
- Baby: Level 10-alpha – Survival Space Baby; Rescue 5 Space Babies
- UFO: Level 13 – UFO; Shoot 12 UFOs (this is also the UFO unlock, for the UFO trophy)
- Blue Camouflage: Level 15 – Boss Attack; Complete the Level
- Demon: Level 15-alpha – Survival Boss Attack; Kill 3 Demons
- Lumper: Level 19-alpha – Survival; Kill 200 Lumpers
- Black: Level 30 – Decoy; Complete the Level
Most are pretty easy to unlock. The hardest by far is the Lumper suit. You will need to get good at Survival to unlock it. For tips on Survival mode and general gameplay, please see the All the Medals
3 Million Total Score
Get a combined total score of 3 million on all levels.
See 30 Million Total Score
for more info.
30 Million Total Score
Get a combined total score of 30 million on all levels.
Every time you set a high score after completing a level, that score will be added to a running total score across all levels that is displayed on the level select screen. Merely hit the required point amounts to earn these trophies (3M and 30M).
3 million is not very hard. You'll most likely have it by the time you unlock your 30th level. Survival levels bring the most points if you can last long enough.
30 million will take a little longer, but you should get it when you have around 110-130 medals. A good way to get a lot of points is to go back to the earlier Survival stages – you can get 2-5 million on them with a little practice. If you've unlocked 100 medals you should be good enough to get 30 million across all your unlocked levels.
2 Million Individual Score
Score 2 million on any single level.
If you're going for all medals, you'll get this eventually, as many medals require you to score over 2 million in a level. If you're impatient, a good level to get this on is Level 4-alpha. This is one of the easier Survival levels to score 2 million points on.
Make sure you've unlocked the UFO upgrade before trying to get a score this high. You can maximize points by shooting UFOs and collecting crystals to increase your point multiplier. That, and lasting for a long time. See All the Medals
for tips on maximizing points.
Unlock 20 levels.
Self-explanatory, merely unlock any 20 levels, adventure or challenge (blue or red). The beginning levels are pretty easy and are only around 30-60 seconds long each. It shouldn't take you long to do this if you get a couple medals in each of the introductory levels, as the game doesn't get hard until you get past adventure level 20.
Complete all the adventure levels. The blue ones!
There are 40 adventure levels, which as the trophy description says, are the blue ones. In order to even complete them, you must first unlock all 40 of them. You'll need to acquire 100 medals to unlock them all.
"Completing" a level consists of killing all zombies. In general, each has about 3 waves of zombies that get progressively harder and more numerous. The medal for completing a level is picture of a rocket against a blue background. You can check whether you've completed a level by just highlighting it on the level select screen – the completion medal will be grayed out if you haven't completed it yet.
The majority of adventure levels are easy to complete and will only take one or two tries. Others are a bit more difficult and will take a bit of skill. I thought the hardest levels by far were 25, 36 and 39. These are tough because there are environment obstacles on these maps that make navigating them a bit tough and there are a fair amount of zombies and bullets on the final wave for each.
See the All the Medals
trophy for gameplay tips and strategies, as well as suggestions on what types of medals are easiest to get if you're short of the 100 you need to merely unlock all adventure levels.
Unlock all the levels.
There are a total of 71 levels in the game. You need 180 medals to unlock them all. Unless you really pick things up quick, you'll start to hit a wall around the 100-120 medal mark and will need to go back to earlier levels and work on some of the previous medals you weren't good enough to get at the time.
Since medals will unlock even if you don't complete a level, certain types of medals are easier than others in the beginning levels, particularly the UFO ones. If you're hard up for a few extra medals and still have some UFO ones that are locked, try to knock them out, as they are generally the easiest type of medal to get. See the All the Medals
trophy for gameplay tips and strategies.