Required Characters: Astromech, Imperial
Canister 1: Destroy the Emperor's Chair, the Canister is inside.
Canister 2: Destroy the large structure in the middle of the room. The Canister sits inside.
Canister 3: Jump up to the higher level on the left side. Destroy the Emperor portrait to get this one.
Canister 4: On the higher level. Destroy the Vader portrait.
Canister 5: On the higher level. Destroy the Emperor statue at the very end, it's inside.
Canister 6 (Imperial): Build the Imperial Panel next to the last Canister. Use it to make the Canister appear on the lower level.
Canister 7: On the lower level, on the left side. Destroy the table like thing.
Canister 8: Head to the very back of the room. Destroy the Emperor Statue.
Canister 9: On the right side. Destroy the Emperor Statue.
Canister 10 (Astromech, Imperial): Build the pieces near the last Canister into an Astromech Panel. Use it to make 5 Imperial Navy Troopers appear. Defeat them all then return to the panel to get the Canister.
Unlocked Characters: Emperor Palpatine (75,000), Baby Rancor (200,000)