Just gun loop with Isaac, it's a little easier to do and pisses people off a lot more :3
But it can't combo into level 1. At least not directly.
Again this is the entire point of empty cancelling properly lol. Because even without it Dante has ways to loop and/or get 150AP bursts.
Still those 130AP bursts from the gun loops add up pretty fast. I can get a level 3 it less than 2 minutes almost every game assuming the opponents aren't using short characters (Sly, Sackboy, Toro, Spike)
It's not an infinite loop, it gets less meter than his actual combo. Also, without the loop, Dante really does become the worst character in the game, because he'd be one of the only 3 characters without a good hit confirm --- No one has the balls to fight these days. It's all about zoning & full screen fireballs