My 2 Weeks of Experience

First off, the game is a 5v5 turn-based game similar to a game called Raid that came out a while ago, and all the Marvel heroes and villains appear. You can level up smoothly just by clearing the daily objectives. You can auto-battle through chapters, and for hero upgrade parts, if you tap on the parts, it'll show you where to find them, so you can collect them there. Usually, people raise 5 heroes and 5 villains as a base, but when I played, I had extra money, so I think I raised twice that amount. The biggest issue is getting 3-star heroes or villains, as collecting hero shards in this game is tough, so focus on raising 3-star ones. By the way, hidden ones appear up to level 40.