Honestly it’s fairly uninteresting, there’s not much to do after you’ve checked out the game modes and seen what it does, it would actually be a fairly decent screensaver if you could make it into your background, but otherwise it’s not really that great, the colour selection is surprisingly limited, the amount of settings is small as well, for instance, in the multiply mode, you can’t choose how much it multiplied by, nor the size of the multiply/release button, the sound is only one song from what I’ve noticed, there may be more and I just got bad luck, but there should be a larger variety of songs to choose from, a team mode might make it slightly better as well, it’s honestly not that complex, it’s a pretty good simulation type deal, but you need to add a lot more choices, like the fire rate, the speed of the marbles, the chance of it launching in a certain direction, these are all factors that could be interesting if allowed to be changed, it seems like a very low-effort, low-budget game, and I genuinely took more time in downloading the game than I did in actually playing said game.
TL;DR needs more features, and needs to be touched up