What a grind! For three full days... not that the gameplay isn't plenty varied and dynamic, rewarding both in the visual aspect of it all as well as the upgrade and loot one, but it does grow pretty monotone after a while... progress is slow, even if you upgrade the money stat to the max. Usually it all balances out with time and progress becomes quicker, but not here.
In the end it feels like it was worth it, but before that final finish line... ugh. It's a bit much. Same thing over and over.
Feels like you can use two strategies to get through this, either go for quick money, upgrade everything and skip all the missions you might have missed out on when you've maxed out with money, via sticking to the main game mode as much as you can.
Or the alternative: start grinding with the first, and then just leave the survival mode open by itself while you do other things, as you don't need to hit replay quite as often with that one. You easily earn way more money at a way quicker pace in the main mode, though, and most missions seem easier to accomplish there too, until you upgrade so far that you start losing control until you slow down, and those upgrades aren't all to your benefit any longer... hard to aim for any particular gummies. If you let it run by itself you might get some automatically if you're lucky.
Feels like this isn't really meant to be an idle game though, so in the end the one complaint I have about it is that grind. Too much for too long. Maybe half the length would've been ideal? Or a reward formula that speeds up the further you go. Also would be nice if highscores get submitted automatically after each full run. Easy to forget to click that button.
Otherwise: such a blast. Love the details. The background, the characters, the names - the everything about it! Interface is a real treat too.
-cd-