[BreakABone]

Well I think the screens reveal a bit more about the gameplay.

Like the first 3 screens seems to reveal cut scenes or a sort. The rest it seems like that is the fact the camera is at a unique angle for all 3 which sort of has Mario at an angle that seems to odd for gameplay.

I believe that the locales also give Mario a mission of sorts. If you look at the 3rd pic and then at the first, you will notice that the woman/creature Mario is talking to is present in the 3rd pic. Like if that creature is in here garden and Mario must clear it out (Similar to a mission in I believe Paper Mario)

the water meter is actually shown to be depleted if you notice in the pic where he is shooting upwards the meter is about 3/4 full. And the water is also shoot at an angle which probably means that the water pump may be controlled by the C-Stick similar to the vaccum in Luigi's Mansion.

The pirahna plant and 4 brothers may be some early boss battles or one of the level specific missions.

The 3rd meter makes a re-appearance in even more screens. It really doesn't help to solve the mystery but it's not related to the water apparently. Maybe it's mission coins or something.

All in all I think it should be a pretty fun game even if it ain't the presttiest game I've seen in my life.