Co-op game model

[hoixding]

For Socializers gamers, it's great fun to clear the level with a partner!
Multi player model will kill friends, it is not a good idea for us.(Don't kill friend)
And, I always die at the beginning of a game.（Three seconds of invincibility at birth）
My English is poor. Sorry.

[rapiz1]

Thanks for your feedback!
I will consider adding a coop mode in the next release as long as I get the time to get back on this.
Also, note that there's no such thing as time of invincibility. At birth, you get a shield that can decrease damage and prevent debuff, but you will still die if you get hit too much or crash into monsters.

[songquanpeng]

@hoixding You can check my fork: https://github.com/justsong-lab/DungeonRush

I have modified the PvP mode to coop mode.