Alexa (or SpongeBarbie in 2.0) is a giant microphone in the shape of a sphere (a mushroom with the looks of Barbie in 2.0) and the first boss of A Koopa's Revenge 2, located in World 1-6, Mario's Villa.
- She fires a sound wave in your direction.
- Alexa leaps into the air, trying to stomp on you.
- She screams similarly to a rabbid, raining the letters of the word "BWAH".
- After Alexa takes damage, she turns into a circle and unfurls bladed spikes, resembling a sawblade from the horror movie, The Suspicion.
- He and the four other object bosses were both stolen and enchanted by Mario, who was cloaked while performing both actions.
- Popmo was originally designed as a can of grape soda. However, when Lambta.co was complained to about the lack of the Mario theming, Popmo was changed to resemble a Mushroom in an update. The old version is still accessible in settings.
- At the start of the level you can go to the back of the stage and access an invisible door. there will be floating platforms that take you to Popmo instantly while also collecting tons of coins.
- Turning into a stone with Dragon Scale and crushing Popmo will instantly defeat him.
- When picking up a veggie. sometimes you can pick up the original Popmo’s body sprite.