Tons of ads, which has become the norm for games like this. Unfortunately many of them are full 30 second ads, rather than letting you skip after 5. Also, you earn coins, but there's nothing to buy with them. Boring, underdeveloped, uninstalled.
It's a fun concept, I've enjoyed playing...but I'm good at math...and their numbers don't give you what you earned. One example: I had 81 runners at the end of a level. They stack up in lines of three. That should have given me 27 lines/levels. I got to level 17. I'm annoyed.
Entertaining for a little while, but after about 20 rounds, there came a point of "what's the point of getting a ton of these coins" and whatever that shield icon is on the right side seems to do absolutely nothing
poorly made ad farm. No point to the coins or watching the extra length ads. Forced to watch short ads every level. Getting a significant ammount of runners heavily lags the game. I got up to 1000 and the game crashed. Bad game wouldnt reccomend.