Abilities are the techniques Sam uses in combat. There are a total of four powers she'll gain access to - each unlocking as the player progresses through the game.
Using abilities consumers Energy, which regenerates over time or can be restored more quickly by eating food. Sam's bubble consumes the yellow (self regenerating) bar, and her other abilities use the blue 'special ability' bar which requires food to restore.
|Energy Bubble||Sam's light orb. Can be used to constrict monsters.||Unlocked by playing through the main story. Basic ability, uses yellow energy bar. Enabled after beating boss The Hand in chapter 1.|
|Energy Blast||Stuns all monsters in view.||Unlocked by playing through the main story. Special ability, uses blue energy bar.|
|Energy Shield||A sturdy shield that lasts for a short time.||Missable - only can be unlocked during Chapter 3 or 4. Special ability, uses blue energy bar. Go to the raft just south of the campside below the 'Big Station' in the City Outskirts, ride the reft west and go inside the diamond on the island to take an elevator below ground. Complete the puzzles inside the cave to unlock the energy shield ability.|
|Energy Heal||Slowly recovers hearts.||Missable - only can be unlocked during Chapter 3 or 4. Special ability, uses blue energy bar. Go to the cave north-east of the 'Big Station' and in the north-east corner inside bomb the cracked wall to unlock a puzzle dungeon. Complete the puzzles inside the cave to unlock the energy heal ability.|
Missable - only can be unlocked during Chapter 7
On the Island Of Time in Chapter 7, after finding Thomas there's a small dungeon which can be unlocked before going back to the dock. Just north of the dock there's a green light bulb poking out of the water. Shoot it with Sam's energy bubble and another will appear - keep hitting the targets until a hidden passage is unlocked to a cave where all abilities can be powered up.
There are three achievements related to Sam's abilities. Two require use of the Energy Bubble ability, and the other requires collecting all four abilities.
|No I in Team||Defeat an enemy while it's being controlled by Sam.||Hidden until unlocked||Missable||Stun an enemy using Sam's Energy Bubble ability, then defeat it using John while it is stunned.|
|Salty Stinking Rich||Obtain 1,000 salt from off a Salt Bug.||Missable||Collect 1,000 Salt (cumulatively) from Salt Bugs. Use Sam's Energy Bubble ability to stun the bug, and each time it is stunned it drops some salt. Leaving an area and re-entering will respawn the bug, so it can be farmed by leaving/reentering an area.|
|Naturally Gifted||Learn all of Sam's abilities.||Missable||Unlock all of Sam's special abilities. There are a total of four - two are unlocked through the story, and there are two other abilities (Regeneration & Shielding) in Chapter 3 which can be missed.|