Press Space The move is called "Scooching".
More ideas: You really take away 10 health points from [enemy]. When [enemy] dies, that means Blob took away (all) 10 health points. Certain enemies can die quicker when you have a certain power that can destroy it, like fire and ice, for example. Fire will die much quicker when you have ice. Bosses have ~1000 points or so, as 100 health points would be too easy and would die in 10 scooches. The 10 scooches turn into 100. When a boss that might have it be a fire boss toch ice, that can take away ~ 50 health points. Maybe I'm being too strict. 100. And so that is the explanation of attacking (so far).