I had to complete 36 maps on Expert for the badge to work, but it was simple enough once I realized they nerfed Super Towers and Poison towers and buffed the crap out of small bombs.
Mystic3m, despite the fact that this is a beta, I think rating it as a full game is perfectly valid since it got badges. If kong didn't want it rated as a full game, then they should have waited until after it was out of beta to give it badges.
The fact that you can guess right off the bat and have a 1 in 6 chance isn't a problem b/c, as the dev says, you don't come anywhere close to maximizing your score by doing that.
As far as I can tell, the GPMG is a shoulder weapon that you need to unlock to get the Firework Master Medal. I got the GPMG on another site by playing the Mechanical Minigame (it's a find the difference game,) but it doesn't unlock it for me on Kong. So I don't know.
I am stunned at the number of people who are giving this game a rating of 1 based on their perception that it's not a complete game, a demo, or whatever. You can play 100% of the levels on this site, the only benefit to playing on another site is being able to unlock stronger weapons. You can finish everything in the game with what is provided on this site.
For those who are having problems with a level not ending, I've had the problem before. What was happening is a monster would go through towers and walls and just go off the screen. It wouldn't take away a life so the game would never reach the appropriate number of monsters killed to complete the mission.
For the life of me I can't figure out how to Movin' on Up and Spread out (44/45) perfectly. No matter what I do, there's always a ghost that spawns in the a spot that it has the shortest possible path to go. And inevitably my towers decide to target that ghost last... letting it slip through.