I have a generic question regarding cloning old but well known games like game called Frogger.
I've found some information regarding TM and Copyrighting:
Legal notice: This game is an unofficial clone of the original Frogger® game and is not endorsed by the registered trademark and copyright owners Konami Co., Ltd.
Does anyone know what kind of copyrights are held by Konami?
Is one allowed to develop a game for mobile phones without getting official approval or expensive license from Konami?
Would it be "illegal" to create a game called "Lonely rabbit", where rabbit is trying to get across the road, full of cars, to get to his female friend?
I hope you understood my question.