I popped into the Aeon Mall in Natori and, lo and behold, there's a Stamp Rally going on!
I'm a sucker for a free prize so I wandered up and down the mall gathering stamps for my card as I go. There's a handy Stand-up Cutouts of each of the applicable Avengers.
(What! No Black Panther!?!)
Details of each character above and my completed sheet of Stamps below.
There are also a half-dozen little games though I haven't yet figured them out.
Finally, the big prize! A sheet of stickers! Woohoo!
These are slightly different from the sheet of stickers I scammed a while back.
While at the Mall, I took a break from my search and won a Spidey and a couple of giant Hulks. (You can never have enough Hulks.)
I hope you're not over-Avengered yet. There's more to come.