"Terminator View"...didn't we have a post before about a similarly named app being deleted by Google as well, along with the developer account, that did the same sort of thing. Could be MGM's lawyers and/or the MPAA taking an interest in these things, i.e. DMCA. Think there was a "Predator Viewer" as well taken down by Google, which could be Fox's lawyers, if memory serves.
They haven't deleted all the "Terminator" or "Predator" things on Play, only the ones they receive DMCA take down notices for, that's what I suspect. Fan made things for personal use is one thing, but if something isn't authorized and
has ads in it making money, that's commercial.
IANAL
With YouTube and DMCA take downs, they don't tell you, the infringing content is just gone. And if you do it repeatedly, your YT account is deleted.
The DMCA basically is the "Sword of Damocles".
EDIT:
With the iTunes Store,
all apps are vetted and curated, and if there's anything suspected of infringing copyright it just doesn't get on there. On iTunes anything with "Terminator" in the title and looks like it has anything to do with the movie franchise, the developer is Warner Bros. which is authorized of course. Same for Predator, Star Wars, Star Trek, etc.
Anything with "Pac" or "Pac Man", and has to do with the coin-op games, the developer is Bandai Namco, which again is authorized.
"Another app he created called ''Android chomp pac'' had a Pacman-like character eating desserts instead of ghosts."
I remember Acorn Computer got into trouble with that in 1982, with a game called Snapper for the BBC Micro in the UK, which was a Pac Man clone,
Namco forced them to change the graphics.
The difference between iTunes and Play is really apparent with Tetris
™ type games, i.e. falling shaped block games. iTunes has plenty of those types of games, but it's only EA calling them "Tetris". Play there's many games called "Tetris", from dozens of different developers.