I played 12 levels and felt compelled to write a review, which I rarely due so take this for what it's worth. This game is a Great design and concept but! It feels like it went a different direction, creatively, once it was completed. The author clearly decided that Aggressive ads after every single level was the best way to make money back on their investment, which is pure greed. Playability is greatly diminished and negated due to the ads. I'm a developer as well and the Ads can be easily adjusted for every other level, every 3 levels, or even just a 20,30,40% of the time. The second issue is how easy the levels are, it would be nice to have a difficulty option in the beginning where you can choose Easy, Medium, Hard for example. Also, let the user hit the marble instead of auto-triggering it. Again, great idea but very poor follow-through and execution. Here's an idea Mr/Mrs Author, pretend your a player or have 5 friends / family members and 5 strangers play this game and ask for feedback... See where you end up and re read my post. If you want to make money, always decide on playability versus profitability.... a user playing this game for months will make you more
money over time with fewer ads than frustrated users like me whom uninstall after the first day, 5-10 levels.