where did you find him ripping Pacman off? If true (I searched through his sites, but couldnt find anything relevant), this would be like the comment of the month to me :)
Also, just like being a "nice guy" or "an asshole" would make a difference, whether or not its OK to rip someone off...
It's flawed though, which is why it doesn't make sense.
There are tons of doodle jump alikes. In fact doodle jump was a clone of an existing iOS game (papi jump). We aren't complaining about imitating gameplay. Can you show me a PAC man clone that's called "Pac-man" and uses the exact same artwork?
If if called this "HTML jump" and made original artwork, no one would be complaining. It's clear why he copied it exactly. He wants people to be confused or to recognize his work because it rides on the reputation of doodle jump.
Also, just like being a "nice guy" or "an asshole" would make a difference, whether or not its OK to rip someone off...