you cant buy people. you can move them around. One trick i use is when using the sniper, after he fires, if you swap him with someone who havent fire yet, he will. repeating a level is intended in order to gain money to level. no need to buy medikits and stuff. they are too expensive. concentrate on upgrading.
to defeat the dragon boss. as the missile silo, you have a spell to get rid of his posiitve buffs. use that and he is no longer in hiding. You also have a defense spell to get rid of the burning effects on yourself. just heal, debuff yourself and him and attack and then repeat.
the things you buy without upgrades can be sold back at 100% cost. my method is to build an inner staight or circular core of solar stations and energy stations, then surround them and the mines with relay stations. when enemy attack from west, build basic lasers, then sell them off and rebuild the direction attack from. most of the time the enemy slowly rotates its attack, so you just build and sell to keep up with them.
it says you can replay old episodes, but its just loading a save game. you cant replay it for gold. that's silly wording and meaning. and the menu goes auto-hides at the worst possible time
rpgfreak14. with higher drop rate. now at 80 i seea lot of gold, brown and blue boxes. i see about 3-5 blue boxes per hour of game play. tones of brown boxes and gold. I dont really see what's the difference between blue and brown boxes, items look the same.