Would be nice if the Horse Cart didn't push against the mobs because it's basically a time trial and a DPS check to try and kill the massive waves fast. I gave up on stage 18 hell mode because it was just a slog for grinding gold and trying to win stages that throw oceans of mobs at you when they reach the end. No thanks.
Game lags to high heavens at later levels and will cause you to lose. Oh wait you lost? too bad time to start over again! Can't upgrade your main character so you always shoot weakly.