The game is fun and entertaining but ads show too frecuently & too many times, interrupting your drawing and is not fun at all. There are no buttons to go back or save. Ads take too long or won't stop, so you have to close the app, come back in, look for your work in progress, and its really annoying. Also, sometimes when your drawing is interrupted, it doesn't keep completely your last color or number and it takes you back many, many numbers, specially with hard and detailed drawings.