946 million in ice cream money. Found a very easy to exploit method of making cash early on, unfortunately. I had maxed out max by sector 3, which made the rest of the game a bit of a drag. Max Bounty, Super Max and fire rate evenly, put on the Crock Pot/Fish Bowl/Lil' Ninja (Whichever hat you can get that rewards the most money), leave the damage stat alone and just spam the hell out of a boss. Beat them without using the Super Max unless you need to heal and when they die, place Max on the body as it falls out of the sky and activate Super Max Mode. You will rake in a lot of cash.
You have already heard that the game is easy. You have also been told the dialogue is funny.
The style is original enough. Rolling for a boss keeps me entertained. Perhaps if the jet pack had a fuel level and the levels had platforms the game would be more of a challenge. Maybe WASD moves around, the mouse aims and shoots, space bar flies, Shift does Super Max? That sort of thing.