This game is so cute, i love the gameplay of clicking bubbles which this was a pretty good take on the theme, Like what other people said the BGM does get a little annoying when its looping every few second, and sadly i think i encountered a bug where after i upgraded the first tank level, somehow the prompt of upgrading fishtank to the next level keeps on appearing, like i keep clicking on the button. Anyway, great job making this game :>