LEVEL 4: make the Shield follow the Dragon while you are controlling the Sword. Keep in mind the Dragon's range: 50-200(?). The 50 means the Dragon cannot attack the Shield even if it's right in the Dragon's face. So when the Shield is right up against the Dragon, you must keep the Sword out of its range or it will attack.
LEVEL 5: The Sniper has a reasonable amount of hitpoints. But the strategy here is to keep it out of the Guards' range. Making trips around the perimeter of the arena and turning after every corner.
This is a really hard one so it's okay if it takes a few tries to do.
LEVEL 6: Make the Soldier follow the Commander all the time, and control the Medic behind the Soldier as a shield -because the Medic has very low hitpoints- making him heal the Soldier. And, the Medic can heal from a decent distance.
16: pressing up will turn the lights on any time of the game. then you'll have to navigate through it purely using your mind and turning the lights on. it gives me a headache.