Basic combo attacks
Basic 1: Press [Action-1] three times in a row.
Basic 2: Press [Action-2] three times in a row.
Basic 3: Press [Right] three times in a row.
Combo 1: Press [Up] three times in a row.
Combo 2: Press [Down Up] [Down]
Combo 3: Press [Action-1] [Action-2] [Action-1] [Action-2]
Combo 5: Press [Up] [Down] [Up] [Down] (learned later)
Combo 6: Press [Up] [Down] [Left] [Right] (learned later)
Combo 7: Press [Action-1] [Action-2] [Up] [Down] [Up] (learned later)
Combo 8: Press [Up] [Right] [Left] [Down] [Action-1] (learned later)
Healing: Press [Action-3] then choose who you want to heal. Press [Left] or [Right] to select the character. Must have candy bars.

Winning battles
Instead of trying to do combos, just hit one of the number keys on the top row of the keyboard. 9 or 0 is for Ephanglor's Wrath. This is an extremely powerful attack that can kill Visser Three with just three of them. 1, 2, 3 and 4 do not do anything.