The Sentinels arent in the boss fight, but still count for three birding. Just three bird the fight. It is cheaper on Unstable Ios and increases your score. Plus the fight is rather easy with three birds (you only need a strong scrapper, blaster, or inflitrator). Magneto is the teamup so it is even easier
Also, for future reference, if you come across this same situation that you're worried about, here's a way to think about it.
The last task is specifically to defeat epic boss Bastion. It says nothing about the other sentinels, which just happen to show up in the epic boss fight, so you needn't worry about whether the sentinels might not appear in the epic boss fight because they are a mini-boss, or someting. The sentinels are not part of this task.
The epic boss appears after all the battles and deploys have been completed. In this case, even though the sentinels do not appear in the Mystique boss fight, as Agent Wildrider has explained, they still count, and defeating Mystique/Toad/Blob will also complete the sentinel battle.
Even if that were not the case, in the future if you are worried that a mini-boss fight might be left over after you three-bird the boss, you could just prepare yourself with 20 extra U-Iso before completeing the final boss fights in case, because it's always better that the boss fight happens to complete all the mini-bosses than if you did the extra mini-boss fight first, because you'd never know if that mini-boss would have been cleared by three-birding the boss. So you can avoid worrying about whether an extra battle is required to make the epic boss appear.
The funny thing is I had 40 uiso before the boss fight. And I've lost the epic fight) I bought 20 uisos to fight him again, game crashed and it of course disappeared! So redo the mission 2 again!)
VocalSparrow wrote: The funny thing is I had 40 uiso before the boss fight. And I've lost the epic fight) I bought 20 uisos to fight him again, game crashed and it of course disappeared! So redo the mission 2 again!)
Do not exit the map. You hard reset the game 1st. Then you get it in mid loading screen and go to settings kill all internet access and go to the game again you will have the message cant connect to the internet. Then you switch internet back on and go to the game it will load and you go to resume and epic will appear.
VocalSparrow wrote: The funny thing is I had 40 uiso before the boss fight. And I've lost the epic fight) I bought 20 uisos to fight him again, game crashed and it of course disappeared! So redo the mission 2 again!)
yeah, I've tried this method with devastating pistol epicboss and it worked. but that time I just didn't do it. it's okay, tomorrow I'll have another chance of the epic fight.