Just had the same problem as idiotpro: after playing 3 or 4 rounds without going back to the options menu, it didn't save my progress. My guns' conditions were intact, no CR or EXP gain, no contract or W-Task progress
Seriously? No pause or MUTE button? Some people happen to enjoy playing while listening to their own music, and not this frantic, never-ending, annoying sounds
A hint for the ones having difficulties: don't overlook the Area Burst towers, they are really powerful, especially against splitters and dodgers!
But still, don't rely too much on them, or ghosts and EMPs are going to just walk through your defenses
it's the actually the opposite of minesweeper, you are supposed to flag the tiles without clues (or bombs in minesweeper) and find the clues (or bombs)
lol... i don't believe the impossible badge is actually possible without cheating somehow... beat any boss in heroic without training fights to get items/exp is impossible...
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