In adventure Level 7, the progress bar reached the end, and all enemies left, but the level wouldn't end. Had to abandon it and try again. Hopefully you can fix this!
This is a fun game, but I have to say that the scrolling annoyed me. I'd prefer it if you could see the whole screen at once so that you don't have to keep dragging the screen back to your characters when the enemies attack. Either that, or have the camera follow the objects being thrown and then move back to your own team.
I miss the boiler! I also miss the game not having to be paid for. Come on, guys. What's up with that? Those two things aside, I like the new types of letters you've added.