I think Apples and Pears are more similar to each other than Psycho Strike is to Grand Theft Auto. I mean, I've had pears that were basically just Apples with a twist.

Regarding coppying game concepts, look at the first game I really developed, The Blank Game. That, was a copy. Same sounds, same music, same weapons and item names, same skills, mostly same locations, different character names and different story. Some of the things I didn't even modify. Pine Attack witch is a game I'm currently working on does copy some parts of other games, (Manamon included) but it's not like I took someone's source code and just decided, I'll make a game out of this and say it's mine, keeping pretty much all the other parts of the game that the source was for. All Pine Attack coppies from Manamon is creature names and attacks, and one or 2 of the songs. That's it. And as I've said before, if people want that removed I'll take it out. About 95% of the sounds have been used in a lot of games, so I didn't think I'd get in trouble or something for using lower quality sounds like them. Same with the music, accept a couple of the mp3 music files are from video games or are just regular songs used in life. The only thing that's keeping me from posting it is making skills for bosses, and balancing out the difficulty. For example, Leefox uses Earthquake and does no damage, then he uses an 8 6 7 5 3 O 9 bomb and does 3500 damage, killing all your party members. I'm guessing people don't want bosses to become impossible, witch is how they are as of now.