The game seems to corrupt at the end of stage 3-3. The character does not appear, and the minion screen is stuck on abilities. I had Firox at the time, and it would not let me alter a substituted minion's abilities after swapping. Restarting from the auto-save file does not help, and it was after doing this that the character is "invisible" and the player cannot move.
It seems like "matches" are any lobby you enter, even if you leave before game actually starts. Don't leave lobby or it is counted as a loss. + if u find this to be true
 "Notebook Space Wars"){kind=icon}
 "Min Hero: Tower of Sages"){kind=icon}
 "Accelerator"){kind=icon}
 "VortexWars"){kind=icon}
 "MC2 : Burning Skies"){kind=icon}
 "The Soul Driver"){kind=icon}
LOL