The Wild have outshot the Blues 117-79, including 41-31 on Sunday, but Allen has been the difference-maker with a number of highlight-reel saves among his 114.
"You know what, we're trying to do things, trying to find holes to get there," Wild captain Mikko Koivu said. "He's playing good. It's not an excuse. We have to be more patient. It's tough to point to one thing."
Not only have the Blues limited the Wild to one 5-on-5 goal in the series over 197:48, but they're also blocking shots; they had 23 more Sunday after 21 in Game 1 and 19 in Game 2, and St. Louis is not giving an inch in the middle of the ice.
"We've got to be better. It's not rocket science," Wild defenseman Ryan Suter said. "We've got to be better. We've got to get more and better chances to the net. We've got to find a way to win the next game."
If they don't, their season will come to a close.
"There's nothing we can do about it now except prepare and come out next game even hungrier," Minnesota right wing Charlie Coyle said. "That's all we can do.
"[Allen's] been great. We've got to find ways to put it past him some more. He's obviously playing awesome. Their goalie is playing good. You throw anything in there and you've got to take away his eyes. You've got to have second, third, fourth efforts. You saw how we scored tonight, and that's how it's got to be, so we've got to do more of that."