screw that... Seriously... it's a breast. It's not going to kill anyone. It's not even real. It's a cartoon. Don't like it? Then go back to church and don't play it.
I think the issue with upgrades is CHOICE. that way, you can choose what order to upgrade in, or save up and skip less powerful upgrades for more powerful ones. It adds much-needed complexity to the game and gives it replay value.
I see a lot of complaints that it was "too easy". Since when do all games have to be extremely hard? Games I've played have LOST rating points because of being too hard. I don't have 2 days to try to perfect a strategy.
But yeah... too short. Awesome game.