Final project idea

So im not exactly sure but I was thinking of doing something where i would have a came called ball catch or something like that. The goal of the game would be to have four different colored balls like red blue purple and yellow and i would have to try to collect as many of the yellow balls as i can without bumping into the red purple and yellow ones, and if i do than i would loose. Maybe I can use my microbit to add sound and color when i loose or when i catch one of the yellow balls. Im still trying to figure out exactly how i want it but this is an idea.