I enjoyed the game in general, but it has big lags sometimes. This makes it really hard to control the ball when they happen at the wrong time. Could be the garbage collector, but best would be to do some profiling.
Sorry for the inconvenience. I've just uploaded a version with some tweaks and bugfixes. Most importantly I changed this level up popup. I hope it makes more clear now, that it's (currently) intended to start a new game after refresh. This might change in the future, but it's nothing I can do ad hoc. To make it clear: The game currently doesn't save the overall gamestate. Only the income multiplier (level) is saved.
 "Roller Ten"){kind=icon}
 "Alchemy Idle Clicker"){kind=icon}
Thanks for your comment and for pointing that. I've see that lag issue on my notebook, profiling is added to my ToDo list ;)