To reiterate, the latest version of Flash Player has a bug in it which causes all sounds to play at the same time in certain circumstances (in this instance, when you go to the upgrade screen). Adobe knows of this bug and (I think) working on a fix. Various members of the Flash development community are pushing Adobe for this bug to be fixed quicker. So sorry, guys! What a pain!
I'm working on a new version to be uploaded in about 12 hours or so, so will play around with expanding the blast radius based on multiplier. It won't be a massive increase tho. No promises, but I'll play around with it and see what works.
I'll reiterate for those who didn't see the last comment I posted about it. The other teams only fire at you due to balancing and the fact that you get 4 turns out of 8, and each enemy team only get 1 out of 8 (on a 4 team level). If the enemy teams attacked each other, you'd have to wait for 3 enemy teams to take their turns after you had yours. Would people really prefer to have all the enemies the same colour? Would that make it a better game? Or would you prefer to have to wait for 3 enemies to take their turn before you took yours? Input appreciated :)
The reason the enemy teams don't attack each other is a balancing issue. During development the teams did attack each other, but you're taking a turn every other go (ie, red, blue, red, green, red, yellow), so having the other teams attack each other makes things too easy. So its either they attack each other and you only get one turn in four, or you have it like it is.
Sorry about losing the save files! I uploaded a new version with some bug fixes, but my encryption software does something with the save files so am trying to work out a way to upload new versions without losing the save data. Very sorry guys. Yes, there is an autosave!