Simple idea, nice execution! Has the basic elements for a game and unlockables to work towards!
Art is also nice and gotta say, their bobbas grew nice! Also they're both cute too and lil expressions are a nice touch. =p
As for the difficulty, it feels right! For some like myself it does start to get a little frantic towards the end but those skilled might enjoy it more.
Despite being a small game, I do enjoy it. A nice way to pass the time. :)
Good game overall! ^u^