This is a little rhythm game.
When the rain drop reaches the water level, player needs to rase it by simply touching it (the light blue see-through dot represents player's finger). Each rain drop represents a note. The note will only play when player touches it with right timing. If player misses a rain drop, it will go into water and raises the water level. The higher the water level, the lesser time for preparation.
Like piano, if it is a high note, the position of that rain drop will be more to the right. Lower ones to the left. The melody will be very simple. If player knows the melody, he/she may even play perfectly without looking at the game screen.
There will be different difficulties for each music. There will be multiplayer online mode as well. Player two choose the music. Player one will be creating the rain drop by touch the game screen at only the right time (there will be no limit for how many notes player one can create. However the higher/lower notes rules applies to where the rain drop can be create). Player two will be rasing the rain drops. The score system I am not sure yet.