Originally Posted by
Korly
If you trade gold for Unstable ISO-8 it's 1 gold for 5 I8. Each mission should be winnable in like, 6 fights. Each fight costs 5 I8 so if you win each time, it's about 30 I8 to run a mission. That doesn't count deploys, because they also cost 5 I8. You can buy gold for 25 cents (You have to buy at least a dollar worth at a time.).
In trying to 5 star the standard missions I see that it takes at least 7 runs, and that's usually with me doing all I can do, as opposed to just getting to the boss as fast as possible. That means it takes around 210 I8 to 5 star a mission, 3 missions would be 630 I8. To buy the I8 with gold it would take 126 gold. To buy 126 gold it would cost $31.50
That's an expensive character.