This is a neat concept. Unfortunately there isn't much to dissuade me from just upgrading red and putting all on red since over the long term I will make a profit and always win. Maybe a mechanic that encourages bet diversification would have been cool? Other than that my only complaint is the music is a bit short and repeats a lot and the ui goes offscreen so I can't read upgrade costs. Interesting concept though and I found the graphics charming.