This game was fun (hilarious even) for a little while, but got boring/frustrating as I played on. The infinitesimal amounts of upgrades are unfulfilling, and given that the gameplay is controlled by one single left mouse button and is mostly based on chance, I personally feel that it can justify being maybe a 3-hour game at the most... but as is currently constructed, there's no way you could beat it playing for 3 hours.
And the later levels are just not sustainable. People start to become hard to convert at level 5. And they become so sparse. And half of them get run over by cars before you even get to them. I maxed out every single non-health category (and got health to 700+), unlocked the gorilla character, pay for continues, and I only managed to get to level 6 once. Actually, that was also when I decided to stop because I seriously thought level 5 was the last level.
So yeah. I want to see the ending, but it will just become one of those things in life that I need to accept not experiencing. Maybe this game is supposed to be easy and I just suck really really bad.