The level select screen is muted. Get past level 7 and you'll have your mute button. Otherwise, it's in your system tray, isn't it? Besides that; All skills cap out at 3. Your max level, therefore, is 12. If you balanced your skills and thought "I wonder what happens if I put 12 points in Defense?" Don't reset, because you just can't. :P
Step 1: Send two roommates after the neighbors with a high attack weapon like hedge cutters, and a high defense weapon like a lead pipe or tennis racket. Step 2: Use that time to save up AP and arm your third guy with a chainsaw or other high value multipurpose weapon. Step 3: ??? Step 4: Profit!
Found a bug; If you try to rearrange items on the bottom pages without clicking a family member on the family screen, both items disappear and are replaced not with "0" but with "Not A Number", and then if you try to unequip an item from a character in that slot, it will crash the character and you won't be able to see what he has. :P
I love how there's no "Abort Launch" button. Working on the Hard badge, hit something my first few seconds into the launch because the screen's not zoomed out far enough yet. Turn right back around and boost straight into the launchpad. Awesome!
"Exit" should be titled "Abandon Game" to distinguish it from "Exit Menu" which I thought it was. There is no "Are you sure you want to abandon your whale" prompt, and I lost 10 minutes of work. :P
 "Arkandian Crusade"){kind=icon}
 "Survival Lab"){kind=icon}
 "Belial Chapter 2"){kind=icon}
 "Bunny Flags"){kind=icon}
 "Deadly Neighbours"){kind=icon}
 "Demons Took My Daughter"){kind=icon}
 "Castaway"){kind=icon}
 "Apokalyx"){kind=icon}
 "Monster Slayers"){kind=icon}
 "IntoSpace!"){kind=icon}
 "Topsy Turvy"){kind=icon}
 "Moby Dick - The Video Game"){kind=icon}