what is cancer bubble
Talk1 Share. Cancer Bubble (ã­ã£ã³ãµã¼ã»ããã«, Cancer Bubble) is the EM Wave Change of the characters Claud Pincer and Cancer from the Mega Man Star Force series. Cancer Bubble appears as an optional boss. Claud Pincer, his human form, is found in the Big Wave Battle Card shop. His EM form can be fought at AMAKEN.