Board Thread:Off-Topic/@comment-7395353-20130620201832/@comment-5708413-20131104110105

Milesprower2 wrote: New bug I found! If you sell a Monkey Ace while the Mouse is over the runway, and you click to bring up the upgrades menu for the sold tower, getting any upgrade will make the Ace reappear but the runway won't! This lets you have infinite Monkey Aces!

That's kinda what Cupa just said above....